a piece of copper metal is initially at 100.0°c. it is dropped into a coffee cup calorimeter containing 50.0 g of water at a temperature of 20.0°c. after stirring, the final temperature of both copper and water is 25.0°c. what is the mass of copper piece used?

Answers

Answer 1

The mass of copper piece use is 13.9 J/K

We are given:

• Initial temperature of copper, [tex]T_{Cu, i}[/tex] = 100°C

• Mass of water, [tex]m_{water}[/tex] = 50 g

• Initial temperature of water,[tex]T_w, i[/tex] = 20°C

• Final temperature, [tex]T_f[/tex] = 25°C

• Specific heat capacity of water, [tex]c_{water}[/tex]= 4.18 J/gK

From the given information, we need to determine the heat capacity of the copper ( [tex]C_{Cu}[/tex]).

The heat released by the copper can be calculated as:

[tex]Q_{Cu}=C_{Cu}(T_{f } - T_{Cu, i})[/tex]

While the heat absorbed by the water can be calculated as:

[tex]Q_{water}=m_{water}c_{water}(T_{f } - T_{w, i})[/tex]

we can assume that the heat released by the copper is just fully absorbed by the water. The sum of the two heats is zero.

[tex]Q_{Cu} + Q_{water } = 0[/tex]

[tex]C_{Cu}(T_f - T_{Cu, i}) + m_{water}c_{water}(T_f - T_{w,i} ) = 0[/tex]

Since we want to calculate the heat capacity of copper, we can rearrange the equation to obtain an equation for [tex]C_{Cu}[/tex].

[tex]C_{Cu}= \frac{ m_{water}c_{water}(T_f - T_{w,i} )} {(T_f - T_{Cu, i})}[/tex]

Since we are given the necessary information to solve the problem, we can just substitute the given values in the equation. Please note that the difference in temperatures in Kelvin is the same as the difference in temperatures in °C. So in this case, we can simply plug in the temperature values without changing them to Kelvin first.

[tex]C_{Cu}= \frac{ m_{water}c_{water}(T_f - T_{w,i} )} {(T_f - T_{Cu, i})} = \frac{(50g)(4.18J/gK)(25\textdegree C - 20\textdegree C)}{25\textdegree C-100\textdegree C}[/tex]

[tex]C_{Cu} = 13.9 J/K[/tex]

Heat capacity or thermal capacity is a physical property of matter, defined as the amount of heat to be supplied to an object to produce a unit change in its temperature.

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Related Questions

an amphiprotic species must always have a lone pair of valence electrons, and a hydrogen atom that can be donated as a proton (h ). is this statement true or false?

Answers

This statement is true.

Amphiprotic species means molecule or ion which can either donate or accept a proton depending on their circumstances. we identify the amphiprotic species it must contain hydrogen atom that can be released a proton. it also must be capable of accepting proton from the compound. amphiprotic species must also have lone pair of valence electron and a hydrogen atom that can be donated as a proton H+

So it is true.

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(a.) a 0.7549g sample of the compound burns in o2(g) to produce 1.9061g of co2(g) and 0.3370g of h2o(g).

Answers

The individual mass of C, H and O in given sample are 0.5196 g, 0.0374 g and 0.1979 g respectively.

Moles of CO2 formed can be calculated as

= Mass of CO2 / Molar mass of CO2

= 1.9061 / 44 = 0.0433 moles

Calculation of no. of moles of carbon

Now, moles of C which is present in one mole of CO2 = 1 mole

Moles of C in 0.0433 moles of CO2 = 0.0433 moles

As we know that, molar mass of C = 12 g / mol

Mass of C in 0.7549 g of given sample can be calculated as

= 0.0433 × 12 =0.5196 g

Mass of H2O formed = 0.3370 g

Similarly, Molar Mass of H2O = 18 g / mol

Moles of H2O = 0.3370 / 18 = 0.0187 moles

Moles of H present in 1 mole of H2O = 2 moles

Moles of H present in 0.0187 mole of H2O = 2 × 0.0187 = 0.0374 moles

Molar mass of H = 1 g / mol

Mass of H contained in 0.7549 g of sample = 1 × 0.0374= 0.0374 g

Mass of O in 0.7549 g sample can be calculated as

= 0.7549 – [(Mass of C ) + (Mass of H) ]

= 0.7549 – [ (0.5196) + (0.0374) ]

= 0.1979 g

Thus, we calculated that the individual mass of C, H and O in given sample are 0.5196 g, 0.0374 g and 0.1979 g respectively.

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DISCLAIMER: THE above question is incomplete. Complete question is given below:

A 0.7549g sample of the compound burns in o2(g) to produce 1.9061g of co2(g) and 0.3370g of h2o(g). Calculate the individual mass of C, H and O in the given sample.

PLEASE HELP 10 POINTS

Which of the following is a
reasonable ground-state electron configuration?
1s21p5
1s22s22p8
1s22s22d4
1s22s22p6

Answers

The reasonable ground - state electron configuration is 1s² 2s²2p⁶

1) Electron configuration is defined as the arrangement of electron in the atomic orbtials.

2)The ground state electron configuration is lowest energy level and have most stable arrangement.

3) An excited state configuration is a higher energy level.

4) According to Aufbau principle ., electrons will occupy the orbitals of lower energies first then occupying higher energy orbitals.

5) Energy of orbitals is calculated by the sum of principle quantum number and azimuthal quantum numbers.

6) The rule of electron filling in the orbital is from lower energy level to higher energy level.

7) According to this rule electrons are filled in the order of 1s 2s 2p 3s 3p 4s 3d 4p 5s ........and so on.

8) According to pauli principle , maximum two electrons, having opposite spin can fit in orbital.

9) According to Hund's rule , orbital in given sub-shell is singly occupied by electrons before filling second electron in an orbital.

10) The ground state configuration is the arrangement of electron around the nucleus of an atom with lower energy levels.

Hence,The reasonable ground-state electron configuration is 1s² 2s² 2p⁶

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A scientist monitors the reaction between two gases in a closed container. What would happen to the rate of the reaction if the scientist increases the temperature in the container?


The rate would increase because higher temperature would increase the number of collisions.

The rate would decrease because the particles are unable to achieve the correct orientation.

The rate would decrease because the space available for the reactions would decrease.

The rate would increase because the average speed of the reactant particles would decrease.

Answers

A scientist monitors the reaction between two gases in a closed container and the rate would increase  if the scientist increases the temperature in the container because higher temperature would increase the number of collisions .

So , first option is correct one .

In the closed vessel the pressure is constant  . So, we already know that temperature affects a reaction's rate . The rate of a reaction increases with temperature . For instance, the time needed to melt a metal will be substantially longer at a lower temperature than it will be once the temperature is increase .

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What is the coordination number for atoms that pack within the diamond cubic crystal structure?.

Answers

Coordination numbers are defined for the crystalline structures that tell about the numbers of atoms bonded to the central atom. The coordination number of a diamond is 4.

What is a coordination number?

A coordination number has been defining the number of the ions, atoms, and molecules that are bonded to the central atom of the crystalline compound or a complex.

The diamond has 8 carbon atoms in its one unit and its coordination number is 4 as its lattice type is face-centered cubic that has carbons at the corners and face center of the structure. One carbon contributes 1/8 hence and the faces center contributes 1/2.

Therefore, the diamond has a coordination number of 4.

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ch4 2o2 → co2 2h2o 4 moles of methane (ch4) are combined with 5 moles of oxygen (o2). how much carbon dioxide (co2) will form? group of answer choices

Answers

Only 2.5 moles of CO2 can be produced since oxygen is the limiting reaction.

Steps

4molCH4 x (1molCO2/1molCH4) =4 mol CO2

5 mol O2 x (1molCO2/2molO2) =2.5 molCO2

Only 2.5 moles of CO2 can be produced since oxygen is the limiting reaction.

Why is carbon dioxide important? What is it?One carbon atom and two oxygen atoms make up the molecules of carbon dioxide (CO2). An essential greenhouse gas that aids in keeping heat in our atmosphere is carbon dioxide. Our earth would be uninhabitable cold without it.What is carbon dioxide used for?

Co2 is used as a refrigerant, in extinguishers, to blow coal, foam rubber and plastics, inflate life rafts and life jackets, blast coal, promote plant growth in greenhouses, immobilise animals before slaughter, and in carbonated drinks.

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Write the value represented by 4.5x10-6 g
0.0000045 g
450,000 g
4,500,000 g
0.00000045 g

Answers

the value represented by 4.5x10-6 g is 0.0000045 g it is a representation  in standard notation

To express enormous figures which are in standard notation like 1,300,000 or exceedingly minuscule quantities like 0.0000000000045, scientists use scientific notation. Scientific notation, also referred to as exponential form, is one of the earliest mathematical techniques. It is well regarded by practitioners. People use scientific notation to handle situations where numbers are too large or too small to be calculated easily. Scientists, engineers, and mathematicians all use this technique. where as standard notation is way writing numbers in normal decimal form. The scientific method id most convenient denoting numbers as the numbers will be either too big or too small.

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What is the best way to show the lead levels in six contaminated water wells?
a line graph
a bar graph
a data table
a circle graph

Answers

According to the research, the correct option is a bar graph. It is the best way to show the lead levels in six contaminated water wells.

What is a bar graph?

It is a graph that is used to show the changes that the data have undergone by graphing the data in bars, representing the frequencies by means of columns (or bars), through their height in a Cartesian plane.

It is a way of summarizing a set of data by categories, allowing different values to be compared using bars of different sizes.

Therefore, we can conclude that according to the research, the correct option is a bar graph. It is the best way to show the lead levels in six contaminated water wells.

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the atom that contains only one electron in the highest occupied energy sublevel (a) s (b) ca (c) ga (d) sb (e) br

Answers

The atom that contains only one electron in the highest occupied energy sublevel is (c) Ga

A sublevel is the division of the principle energy levels. There are infinite numbers of sublevels but the defined are: s, p, d and f.

The abbreviated "s" is for sharpThe abbreviated "p" is for principleThe abbreviated "d" is for diffuseThe abbreviated "f" is for fundamental

These energy levels are used to predict and explain the chemical bonds which atoms can form. The equation that allows for finding the distributions for an electron is the Schrodinger's equation.

For the options gave we have the following sublevels:

(a) S = [Ne] 3s2 3p4

(b) Ca = [Ar] 4s2

(c) Ga = [Ar] 3d10 4s2 4p1

(d) Sb =[Kr] 4d10 5s2 5p3

(e) Br = [Ar] 4s2 3d10 4p5

As we can see the only atom that has one electron in the highest occupied energy sublevel is Gallium

What is an atom?

The atom is the smallest part of the composition of matter, it is indivisible and is composed of a nucleus that has protons and neutrons, and around the nucleus there are the electrons.

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Can anyone answer this question please it is very important


Which statement about bases is true?

(a) They are all alkalis

(b) They can neutralize acids

(c) They are all soluble


please can anyone explain what the question is about please brother/sister?

Answers

Answer:

b

Explanation:

well acids are acidic and bases are basic so they nutralize it

Option (b) They can neutralize acids, which is true about bases.

A substance that neutralizes acid is a base and this is soluble in water and is an alkali. however, all bases are not soluble in water. for that reason, All alkali are based totally however all bases are not alkali.

Bases are known as Arrhenius bases, Brønsted bases, and Lewis bases. All definitions agree that bases are substances that react with acids as firstly proposed by G.-F. Rouelle in the mid-18th century.

Neutralize acids, a susceptible base is used. Bases have a sour or astringent taste and a pH of more than 7. common bases are sodium hydroxide, potassium hydroxide, and ammonium hydroxide. Bases are neutralized by means of the usage of a weak acid.

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Using the periodic table above and your knowledge of patterns and trends on the table, which of the following elements has the highest electronegativity? (1 pt)
*
1 point
Titanium (Ti, #22)
Silicon (Si, #14)
Oxygen (O, #8)
Argon (Ar, #18)

Answers

Hello, the most electronegative of these elements is Oxygen, O.

5.the acyl group is a protecting group for amines which can be deprotected by treatment with sodium hydroxide. please write mechanisms for both the protection and deprotection steps

Answers

Protecting Groups for Amines:

Amine protecting groups are essential for the synthesis of peptides.Carbamates are useful protecting groups for amines. They can be installed and removed under relatively mild conditions.One of the most common carbonate protecting groups is the t-butyloxycarbonyl (Boc) protecting group. It can be removed with strong acid (trifluoro acetic acid) or heat.The carboxybenzyl (CBz) group has a benzyl group and can be removed using catalytic hydrogenation (Pd-C, H₂)The fluorenyl methoxy (FMoc) group can be removed with an amine base (e.g. R₂NH)If multiple protecting groups are present on the same molecule, it's useful to choose them such that they can each be removed under different sets of conditions (e.g. acidic, basic, hydrogenation).

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85% of Greenland is covered in ice with an average thickness of 1500 meters. Estimate how much ice (in kg) there is in Greenland if the island is approximately 840000 square miles. For this problem, assume the density of ice is exactly 0.917 g/mL, and that one mile is exactly 1.60 kilometers.

Answers

1375.5 kg ice (in kg) there is in Greenland if the island  

Given data is 85% of Greenland is covered in ice  thickness = 1500 meters 840000 square miles,  density = 0.917 g/mL, one mile = 1.60 kilometers.

Here  1.60 kilometers = 0.6177 square miles we have to find ice (in kg) = ?

Here density is given and thickness also given means volume so we have to find mass in kg = ?

Density = mass/volume

0.917 g/mL = mass/ 1500

Mass = 0.917 g/mL× 1500

Mass = 1375.5 kg of  ice there is in Greenland if the island

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Convert a volume of 2650 cm³ to cubic meters.

Answers

Answer:

0.00265m³

Explanation:

from cm³ to m³, divide by 1000000.

2650/1000000

=0.00265m³

hydrogen fuel can be produced from methane or by electrolysis of water. as of 2020, the majority of hydrogen (∼95%) is produced from fossil fuels by steam reforming or partial oxidation of methane and coal gasification with only a small quantity by other routes such as biomass gasification or electrolysis of water.

Answers

Natural gas contains methane (CH[tex]4[/tex]), which is used to produce hydrogen by thermal processes like stem-methane reformation and partial oxidation.

In steam-methane reforming, which is the most common method to produce hydrogen, high temperature steam (700°C - 1000°C). The pressure required is 3-25 bar pressure, in the presence of a catalyst. Steam reforming is an endothermic process. Carbon monoxide and steam are reacted using catalyst to produce carbon dioxide and hydrogen.

Partial oxidation is an exothermic process. It is much faster than steam reforming. This method initially produces less hydrogen.

These processes are more preferred because the use of petroleum is low and the emissions is also low. Total greenhouse gases emission is cut.

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How can you distinguish between crystalline allotropic modifications of Sulphur from those of amorphous allotrops?​

Answers

The crystalline allotropes of sulfur are very strong and have a high melting and boiling point while the amorphous allotropes of sulfur are brittle and breaks easily.

What is a crystalline substance?

A crystalline substance is one that has a definite arrangement of the atoms in the substance. An amorphous substance lacks this definite arrangement. We can see this arrangement when we conduct an X-ray crystallography of the sulfur.

Also, the crystalline allotropes of sulfur are very strong and have a high melting and boiling point while the amorphous allotropes of sulfur are brittle and breaks easily.

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lewis dot structure ​

Answers

The Lewis dot structure are given as: dot represents total no. of valence electron around an atomic symbol.

Calcium                    Calcium ion

   Ca :                              Ca[tex]^{2+}[/tex]

Sodium                     Sodium ion

   Na ·                              Na[tex]^{+}[/tex]

Aluminium                 Aluminium ion

   ·Al :                               Al[tex]^{3+}[/tex]

Barium                        Barium ion

  Ba :                                Ba[tex]^{+}[/tex]

Magnesium                Magnesium ion

   Mg :                                Mg[tex]^{2+}[/tex]

Cesium                       cesium ion

   Cs ·                                Cs[tex]^{+}[/tex]

Lithium                      Lithium ion

    Li ·                            Li[tex]^{+}[/tex]

 

Thus, In Lewis dot structure , one dot for every valence  electron with element's symbol.it describe the bonding atoms, no, of bonds in molecules and the lone pairs left in bonding. A single dot represents one electron.Lewis  symbols shows no. of valence electron of a specific elements.

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Explain the role of photosynthesis in the flow of energy between the plant and the person shown in the diagram.
plant and the person

Answers

Sunlight energy can be converted by photosynthesis into chemical energy in the form of carbohydrates, which can then be used by the body for cellular respiration. Humans employ oxygen and carbohydrates, the byproducts of photosynthesis, to create energy, water, and carbon dioxide. Human breath carbon dioxide is used by the plant to complete photosynthesis.

Green plants and certain other organisms convert light energy into chemical energy through a process called photosynthesis. Light energy is gathered and utilized during photosynthesis in green plants to change the water, carbon dioxide, and minerals into oxygen- and energy-rich organic molecules.

It is impossible to overstate the role that photosynthesis plays in sustaining life on Earth. There would soon be little food or other organic materials on Earth if photosynthesis stopped. The majority of life would vanish, and eventually, the atmosphere of Earth would contain almost no gaseous oxygen. Only chemosynthetic bacteria, which can use the chemical energy of specific inorganic substances and are not reliant on the conversion of light energy, would be able to survive in such an environment.

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(HURRY 6. What happens during the phase change of condensation?

liquid turns into solid

gas turns into solid

liquid turns into gas

gas turns into liquid

Answers

D

Explination: During condensation, a substance is changed from the gaseous to the liquid state of matter. Vaporization, which is more often referred to as "boiling," is the complementary process in which a chemical is converted from the liquid state of matter to a gaseous physical form.

A cylinder contains 10 mol of gas at STP. Calculate the temperature and pressure of the gas?​

Answers

Temperature is 273 Kelvin and pressure is 1 bar.

Given - 10 mol of gas at STP

Temperature = ?

Pressure = ?

STP -  STP or Standard Temperature and Pressure, refers to the nominal atmospheric conditions at sea level. 0 degrees Celsius and 1 atmosphere are the respective temperatures and pressures. The STP value is essential for physicists, chemists, engineers, pilots, and navigators in addition to other specialists.

In order to report on the qualities of matter, standard conditions for temperature (T) and pressure (P) relate to a certain temperature and pressure. STP values are frequently applied in gas experiments.

STP was previously defined as follows by the International Union of Pure and Applied Chemistry (IUPAC):

It is 0 degrees Celsius outside (273.15 degrees Kelvin or 32 degrees Fahrenheit)

One atmosphere (101.325 kilopascal or 760 Torr)

This usage of the term has been dropped. However, the definition of the volume (V) term normal cubic meter continues to be often employed under these circumstances. The IUPAC has used a stricter definition of STP since 1982:

Absolute pressure: 105 Pa or 100,000 pascals (1 bar, 14.5 pounds per square inch, 0.98692 atm).

Hence, Temperature is 273 Kelvin and pressure is 1 bar at STP.

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what value would you put the NUMERATOR of this calibration? please help t

Answers

The value that would be put in the numerator of this calibration would be 10° C .

The process of calibrating an instrument involves setting it up such that it can produce results for samples that are within a reasonable range. A key component of instrumentation design is eliminating or reducing conditions that lead to faulty measurements.

In order to ascertain the mistake or confirm the precision of the unknown value of the DUT, a calibration is normally carried out. As a simple illustration, you may calibrate a DUT thermometer by measuring its temperature in water at its known boiling point (212 degrees Fahrenheit) in order to determine the thermometer's inaccuracy.

To obtain accurate readings, a thermometer must be calibrated because its precision is susceptible to deterioration over time. Thermometers can change over time for a variety of reasons.

Hence, The value that would be put in the numerator would be 10° C because difference between two marked values or space between two marked value is 10.

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An adult patient who weighs 135 pounds is given 10.0 mL of a different liquid medicine. The label states that each
teaspoon of the medicine mixture contains 75 mg of active ingredient. What dose, in mg/kg, has bee
administered to this patient? Information with the medicine indicates that 3.3 mg/kg is the maximum
recommended dose. Has this patient received an overdose?

Answers

The patient has not received an overdose because only 150 mg of the drug was given instead of 202.488mg which is the maximum recommended dose.

Calculation of drug dosage

The weight of the patient= 135lb

The weight of patient in Kg is calculated as follows,

1 kg = 2.2lb

Xkg = 135Ib

Xkg= 135/2.2

Xkg = 61.36kg

The maximum recommended dose for the drug = 3.3mg/kg

That is, if 3.3 mg = 1 kg

Xmg = 61.36kg

Xmg = 61.36 × 3.3 = 202.488mg

The number of teaspoon administered = 2 = 10ml each containing 75mg of the drug.

The patient received 75 mg ×2 = 150mg of drug.

Therefore, the patient has not received an overdose because only 150 mg of the drug was given instead of 202.488mg which is the maximum recommended dose.

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What is the speed of light (c)? Remember the units.

Answers

Answer: c = 2.99792458 x 108m/s

Explanation: This equation is the speed of light in a medium having an index n, and c represents the speed of light in vacuum.

True or False: The periodic table has changed very little since it was originally developed by Mendeleev and Meyer.

Answers

The periodic table has changed very little since it was originally developed by Mendeleev and Meyer is referred to as a false statement.

What is a Periodic table?

This is defined as the arrangement of elements based on their atomic number in a tabular form. It consists of 18 vertical columns which re referred to as groups and seven horizontal rows called period.

Henry Moseley in 1913 organized Mendeleev's periodic table based on physical properties.This took into consideration their atomic number rather than atomic mass and other missing elements.

This is the periodic table which is used currently and therefore hasn't changed much which is why false was chosen.

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Which of the following sets of values is correct for Bromine-80 (Br, #35), which has a mass of 80? (1 pt)
*
1 point
80 protons, 80 electrons, 80 neutrons, 8 valence electrons
45 protons, 45 electrons, 80 neutrons, 7 valence electrons
45 protons, 45 electrons, 35 neutrons, 8 valence electrons
35 protons, 35 electrons, 45 neutrons, 7 valence electrons
35 protons, 45 electrons, 35 neutrons, 2 valence electrons

Answers

The answer is 35 protons, 35 electrons, 45 neutrons, and 7 valence electrons.

Difference between Macro and micro soil organisms

Answers

The difference between Macro and Micro soil organisms is that macro soil organisms can be seen through the eyes but micro soil organisms cannot be seen through the eye, they can be seen under the microscope. Micro organisms are called soil / micro flora while macro organisms are called soil / macro fauna.

Soil organism are divided into two groups, Micro soil organism and macro soil organisms. The micro soil organisms include bacteria, fungi, and protozoa, while macro soil organism include nematods, arthropods, mollusks, etc. Although both are responsible in increasing soil activities, but micro organisms contributes around 60-80% of total biological activity.Microorganisms have many roles such as breakdown of organic matter, recycle nutrients, nitrogen fixing, promoting growth, creating humus, etc.Macro organisms have different roles such as maintaining balances of micro flora in soil, consuming plant residues, etc.

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HELP I NEED THIS NOW! What is the consequence of carbon's unique bonding ability?

It can only bond with a select few elements.

It is very rarely found in molecules.

Only one carbon atom can be present in a molecule at a time.

It forms the basic building blocks of organic molecules.

Answers

I think it is the last one
It forms the basic building blocks of organic molecules.
Correct me if I’m wrong but carbon is common in nature and it can bond with many elements.

For one thing, carbon atoms are remarkable in the chemical world because they can combine to form extraordinarily long, strong chains with branches or rings of varying widths. The correct option is D.

The most distinctive feature of a carbon atom is its ability to self-combinate or catenate. This characteristic is very important since it produces a lot of organic or carbon-based chemicals. Numerous atoms can be joined to the lengthy carbon chain in various ways to create a vast array of carbon compounds.

Since carbon possesses four valence electrons, it can make four covalent bonds to reach its full outer energy level. It creates molecules known as hydrocarbons when it solely forms bonds with hydrogen.

Thus the correct option is D.

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In simple summary form, the calvin cycle requires an input of __________ for every product that is formed and the output product is __________, which is used for glucose synthesis.

Answers

In simple summary form, the calvin cycle requires an input of 3 CO₂ for every product that is formed and the output product is a three-carbon molecule, which is used for glucose synthesis.

Calvin cycle is light-independent (dark) reactions or carbon reactions.

In photosynthesis (convert light energy into chemical energy), the carbon in carbon(IV) oxide is being reduced to form glucose.

The pigment chlorophyll absorbs one photon and loses one electron (it passed throw an electron transport chain) in the light-dependent reactions.

The enzyme RuBisCO takes carbon(IV) oxide in the light-independent reactions.

During Calvin cycle, three molecules of carbon dioxide (CO₂) are combined with hydrogen ions to form three carbon-molecules (see the picture).

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1. Most of the chemicals included in your kit can be discarded down a drain with copious amounts of water. Describe a situation in which you would need to neutralize a chemical before discarding down a drain.

Answers

Answer:

A strong acid or a strong base should be neutralized before pouring down a drain.

Explanation:

Always make sure to add acid to water (not vice-versa) to avoid a nasty exothermic reaction :)

An object displaces 15.9ml when it is submerged in water. What is the volume of the object in liters?

Answers

Answer:

0.0159 Liters

Explanation:

15.9 ÷ 1E3 aka 1000 = 0.0159 liters

milli means 1000 of something

Other Questions
Does the Federal Reserve have too much power and independence in setting monetary policy?Respond in 200 words Consider a person whos drowning in debt with credit cards, car payments, and student loans. What advice would you have for them? what can you do now to make sure you dont end up in this situation later in life?. 25 points plus brainliest Write the equation of a square root function that has beenshifted up 3 units and right 1 unit and contains the point(5,7). If a work of literature includes allusions, what should you expect to see?a key event that advances the plot and develops the themewords associated with a particular emotiona symbolic object such as a dove or a rainbowindirect references to a well-known person, place, event, or text Two ropes are attached to a heavy object. The ropes are given to two strong physics students (is there any other kind?) with instructions for each to pull with 1000 N of force. Determine the resultant force if the two students pull: a) in the same direction east. Parsons Bank offers two checking-account plans. The No Frills plan charges 25 cents per check whereas the Simple Checking plan costs $5 per month plus 5 cents per check. For what number of checks per month will the Simple Checking plan cost less? the ceo of a large company decides to survey the workers for their opinions about a new vacation policy. a sample of the population that gives each worker an equal chance of participating in the survey would be a(n): please choose the correct answer from the following choices, and then select the submit answer button. answer choices sample that includes half the workers. random sample. unrepresentative sample. sample that includes all the workers. Which of the following is the equation of a line in slope-intercept form for aline with slope = 2/3 and y-intercept at (0,-2) True or false: Properties that cannot be observed are due to the structure of atoms and molecules that can be observed. what is ""notorious"" about the story the narrator hears in ""the notorious jumping frog of calaveras county?"" a double decker bridge has two parallel levels connected by a network of diagonal girders. one of the girders makes 52 degrees angle with the lower level as shown in the figure. what is the measure of angle 1? Write and equations of the horizontal and vertical lines that pass though the given point. (-3,2) (1,4) What does the juxtaposition of Janes questions with Mrs. Fairfaxs answers reveal about Mrs. Fairfax?Mrs. Fairfax spends a lot of time thinking about Mr. Rochester.Mrs. Fairfax dislikes Mr. Rochester but tolerates him.Mrs. Fairfax respects Mr. Rochester and does not think much more about him.Mrs. Fairfax is curious about Mr. Rochester and enjoys talking about him. identity the restrictions on the domain of f(x)=x-1/x+4 How does the author use characterization to develop their personal qualities of herself (Amy Tan) in Two Kinds? 2. Which method of formal amend-ment has been used only once?For which amendment was itused? Oh jesus, joseph, and mary please help me asap x^2=a^2, what does x equal? Select 2 of the following reasons as to why the Interstate Commerce Act was significant.A. First major law to limit the powersof Big BusinessB. Broke up Rockefeller's StandardOil BusinessC. Ended Monopolizing ofbusinessesD. Limit Railroad's ability to abusetheir pricesE. Increased actions of HorizontalIntegration within industrie