If you begin with a saturated solution of sugar dissolved in water, and then you heat the solution, what type of solution will result
Answers
After beginning the experiment with a saturated solution, then increasing the heat, we will be left with an unsaturated solution.
To obtain the saturated solution, we must dissolve sugar in the water. We can say that the solution has become saturated when the solution is no longer able to dissolve more sugar. It has reached its capacity for the solute that it can dissolve in these conditions.
However, the temperature of a solution has an effect on the dissolving limit of the solution. That is, when a solution is heated it becomes able to dissolve more solute. Therefore, if we were to heat a saturated solution, it will be able to dissolve more solute and therefore will no longer be at its limit, meaning it is no longer a saturated solution. It has become unsaturated.
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6. (04.02 MC) Two chemical reactions are shown:
A. Ca(OH)2 → CaO + H2O
B. 4K + O2 → 2K2O
Which statement is true? (4 points)
A) Both are synthesis reactions.
B) Both are decomposition reactions. C) A is a synthesis reaction, and B is a decomposition reaction.
D) A is a decomposition reaction, and B is a synthesis reaction.
Answers
A. Ca(OH)₂ → CaO + H₂O is a decomposition reaction
B. 4K + O₂ → 2K₂O is a synthesis reaction.
The correct answer to the question is Option (D) A is a decomposition reaction, and B is a synthesis reaction.
A decomposition reaction is a reaction in which a large compound is broken into two or more products for example:XY —> X + YA synthesis reaction is a reaction in which two or more substances combine to produce a single product. For exampleC + D —> CDWith the above information in mind, we conclude that:
A. Ca(OH)₂ → CaO + H₂O is a decomposition reaction
B. 4K + O₂ → 2K₂O is a synthesis reaction.
The correct answer to the question is Option (D) A is a decomposition reaction, and B is a synthesis reaction.
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Answer:
d
Explanation:
2. The mass number tells the total number of
nucleus of an atom. These particles collectively are called
both are located in the nucleus.
Answers
Answer: The mass number tells the number of protons.
Explanation:
You want to build a deck off your kitchen and you estimate that you will need 3000 #8 nails all together. Rather than pay extra for them to be put in little boxes, you go to a hardware store where they sell nails in bulk. How does the sales clerk count out 3000 #8 nails for you?
Answers
Answer:
The sales clerk can count your nails in 6 groups of 500 nails, or 30 groups of 100 nails to ease the counting process and garauntee a more accurate result.
Explanation:
82. How many moles of calcium are in 3.82g of calcium?
Answers
Moles= 3.82/40
Moles= 0.0955 mol
9. The “power plant” of the cell is the
(a) nucleus.
(b) ribosome.
(c) chloroplast.
(d) mitochondria.
Answers
Answer:
D. Mitochondria
Explanation:
The mitochondria, labeled the powerhouse of the cell, are the organelle responsible for energy production within the cell
sodium chloride is a compound of sodium and chlorine. which of these elements is the alkali metal and which is the halogen. why
Answers
Answer:
Chlorine is a halogen and sodium is an alkali metal.
Explanation:
please help as soon as possible!!!
Answers
Answer:
the kidney control the amount of water, ion, and other substances in the blood by excreting more or less of them in urine, also secretes the hormones that help maintain homeostasis
NaC2H3O2 HOH --> HC2H3O2 NaOH Since the two products are a weak acid and a strong base, we expect this mixture to be basic. When NaF reacts with water in the same manner, the products would be NaOH and _______.
Answers
The products of the reaction would be NaOH and HF
From the question,
We are to determine the products of the reaction between NaF and water in the same manner as the given reaction.
To determine the other product, we will write the equation for the reaction
The equation for the reaction is
NaF + H₂O → NaOH + HF
Hence, the products of the reaction would be NaOH and HF.
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What happens to the molecules that make up a chocolate chip as it is heated in the oven?
Answers
Answer:As thermal energy is transferred to the chocolate, its molecules vibrate faster and faster. Eventually they vibrate fast enough that they start to slide past each other and move around. As this happens, the chocolate changes from a solid to a liquid.
Explanation:
Answer:
it becomes
Explanation:
as a soggy liquid
that is how it becomes
liquid and little thick
as it is heated
hope it helps you
thank you
What causes a change in speed or direction?
A) Balanced Force
B) Net Force
C) Force
Answers
Answer:
force i think
Explanation:
Something that potatoes and bacteria have in common is that they both reproduce(1 point)
via vegetative reproduction.
using tubers.
via binary fission.
asexually.
Answers
Potatoes reproduce asexually through the vegetive propagation mechanism. They have microscopic eyeballs which produce scaly leaves, and new potato plants emerge from these leaves. Only a single individual is responsible for the development of a new species.
Bacteria(Prokaryotes) reproduce asexually through binary fission, where the parent organism divides itself into two, producing genetically identical clones of itself.
The things that potatoes and bacteria have in common is that they both reproduce asexually. Thus option 4 is correct.
What is reproduction?Reproduction is defined as the biological process that creates new individual organisms from existing ones, also referred to as "offspring"
It can also be defined as the process by which identically minded organisms make new organisms.
There are two types of reproduction.
Sexual reproduction - It is defined as a method of reproduction whereby male and female gametes combine to create an offspring.Asexual reproduction - It is defined as a method of reproduction that doesn't modify the number of chromosomes or involve the fusing of gametes.Thus. the things that potatoes and bacteria have in common is that they both reproduce asexually. Thus option 4 is correct.
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NO ONE IS ANSWERING PLS HELP!
Which product in the reaction forms a precipitate?
AgCl
AgK
No precipitate formed
Answers
Answer:
AgCl
Explanation:
Got correct on E2020
Answer:
B: AgCl
Source: trust me bro
can someone help me with this question!!
Answers
Answer:
A Because sodium chloride can break down the table sugar
Explanation:
hi
What type of bond is between NaCL?
Answers
Answer:
Ionic Bonds
Explanation:
Ionic bonds usually occur between metal and nonmetal ions. For example, sodium (Na), a metal, and chloride (Cl), a nonmetal, form an ionic bond to make NaCl.
The travel of speed of an electromagnetic wave of 2.8cm wavelength and of 1.1×10^10 Hz frequency is.........
3.92m/s
0.25m/s
30.8m/s
3×10^8m/s
Answer and I will give you brainiliest
Answers
Answer:
wer
c=3.00×108 m/s (the speed of light in a vacuum) λ = wavelength in meters ν = frequency in Hertz (Hz) or 1s or s−1 .
Explanation:
I might be wrong also you don't have to give me brainliest save it for someone else who knows I might be wrong
Imagine yourself making a nice cup of tea on a cold winter day. You begin by boiling some water in a kettle. Next, you add the steaming liquid to your cup. Then, you open a tea bag and repeatedly dunk it into the water. You pour a dash of milk and drop a few sugar cubes into the cup, stirring the solution with a spoon. Finally, you squeeze a bit of lemon into your tea mixture. However, before you have time to stir the lemon juice into your tea, the liquid forms clumps. In other words, your tea has curdled!
Based on the scenario, answer the questions below.
Which of the four indicators of a chemical change is described in the paragraph above?
What makes the tea with milk and lemon curdle?
Name some of the chemical substances in the tea mixture. (You will need to conduct some research on your own to do this.)
Which chemicals could have reacted to cause the curdling?
Answers
Which procedure would produce the best data for comparing the electrostatic forces between the molecules of different substances?
Heat each substance in liquid form for the same amount of time. Measure the temperature of each substance.
Heat each substance in liquid form to its boiling point. Measure the temperature of each substance.
Heat each substance in solid form to its melting point. Measure the quantity of each substance that has melted.
Heat each substance in solid form for the same amount of time. Measure the temperature of each substance.
Answers
The best data for comparing the electrostatic forces between the molecules of different substances can be obtained through this procedure: B. Heat each substance in liquid form to its boiling point. Measure the temperature of each substance.
An electrostatic force can be defined as a force of attraction or repulsion between two (2) stationary and electrically charged particles of a substance.
Basically, the force between two (2) charges is inversely proportional to the square of the distance between them and directly proportional to the magnitude of their charges.
In the molecule of a substance, an electrostatic force is mainly responsible for holding its atoms together while giving the molecule both structure and strength.
During an experiment that is aimed at obtaining the best data to compare the electrostatic forces between the molecules of different substances, the procedure that should be adopted include:
Each of the substance should be heated in liquid form to its boiling point.The boiling temperature of each substance should be measured and recorded.From the data, a comparison should be done to know which molecule contain atoms that are tightly held together.Read more: https://brainly.com/question/24031197
Answer:
B. Heat each substance in liquid form to its boiling point. Measure the temperature of each substance.
Explanation:
Just in case you couldn't find the answer. <3
Rationalize the action of open burning
Answers
Answer:
open burning adds do our global timer adding carbons ,methane etc. to our atmosphere
also open burning is burning of unwanted material in the open air where smoke and toxins fumes are released into the atmosphere directly
Explanation:
i used the amazing internet
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A 250 kg rock falls off a cliff and comes to a rest on the ground, which is 40m below the cliff. At what point is the rock’s kinetic energy at maximum?
Answers
Answer:
at 39m
Explanation:
because thats where gravitational potential energy has been acting on it the most before it hits the ground.
pretty sure btw
According to the following map, what is a type of mineral found in Mexico?
a | Bauxite
b | Copper
c | Gold
d | Zinc
Answers
Answer:
B) copper
Explanation:
According to the map, iron, silver, and copper are found in Mexico. That makes B) copper your answer, as it is the only one that shows up for both the answer choices as well as the map.
A student wants to conduct an investigation on vapor pressure Which statement describes how vapor pressure is related to an observable phase change?
A liquid boils when the vapor pressure equals the boiling point.
A liquid freezes when the vapor pressure equals the melting point.
A liquid freezes when the vapor pressure equals the atmospheric pressure.
A liquid boils when the vapor pressure equals the atmospheric pressure.
Answers
The Whole Electrical Bonding Investigation Plan Quick check
1) B. boiling point, surface tension, vapor pressure
2) A. glycerin
3) C. the temperature at which additional heat energy causes the substance to change from a liquid to a gas
4) D. Heat each substance in liquid form to its boiling point. Measure the temperature of each substance
5) A. A liquid boils when the vapor pressure equals the atmospheric pressure.
Consider the following chemical reaction.
3 Zn(C₂H₃O₂)₂(aq) + 2 Na₃PO₄(aq) → 6 NaC₂H₃O₂(aq) + Zn₃(PO₄)₂(s)
A chemist makes a solution of zinc acetate by dissolving 20.5 g Zn(C₂H₃O₂)₂ in 105 mL H₂O. What is the concentration of this zinc acetate solution?
Answers
The concentration of the zinc acetate, Zn(C₂H₃O₂) solution is 1.067 M
We'll begin by calculating the number of mole in 20.5 g of Zn(C₂H₃O₂)₂Mass of Zn(C₂H₃O₂)₂ = 20.5 g
Molar mass of Zn(C₂H₃O₂)₂ = 65 + 2[(12×2) + (3×1) + (16×2)]
= 65 + 2[59]
= 183 g/mol
Mole of Zn(C₂H₃O₂)₂ =?Mole = mass / molar mass
Mole of Zn(C₂H₃O₂)₂ = 20.5 / 183
Mole of Zn(C₂H₃O₂)₂ = 0.112 mole Finally, we shall determine concentration of Zn(C₂H₃O₂). This can be obtained as follow:Mole of Zn(C₂H₃O₂)₂ = 0.112 mole
Volume = 105 mL = 105 / 1000 = 0.105 L
Concentration of Zn(C₂H₃O₂)₂ =?Concentration = mole / Volume
Concentration of Zn(C₂H₃O₂)₂ = 0.112 / 0.105
Concentration of Zn(C₂H₃O₂)₂ = 1.067 MTherefore, the concentration of the zinc acetate, Zn(C₂H₃O₂) solution is 1.067 M
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I am an alkali metal located in the third period of the periodic table. Who am I?
Answers
Answer:
Magnesium
Explanation:
It's an alkali metal and is in the third period on the period table. I'm sure
The alkaline earth metal found in period 3 of the periodic table is magnesium.The lightest structural metal is magnesium (Mg), an alkaline-earth metal from Group 2 (IIa) of the periodic table.
I am an alkali metal located in the third period of the periodic table. Who am I?
Six chemical elements in Group 1, the periodic table's leftmost column, make up the alkali metals.They are francium (F), cesium (Cs), rubidium (Rb), potassium (K), sodium (Na), and lithium (Li) (Fr). One of the chemical elements in the third row of the periodic table of the chemical elements is referred to as a period 3 element. Magnesium is regarded as a metal because it is a member of group2.Acid and metals react to produce salt and hydrogen gas.As a result, magnesium interacts with diluted hydrochloric acid to produce magnesium chloride (salt) and hydrogen gas. Magnesium is a silvery, light metal that makes up 2% of the Earth's crust but is not present in nature.Only in combination with other elements like carbon, calcium, and oxygen, as in the common mineral dolomite, could this versatile element naturally arise. Magnesium is a cofactor in more than 300 enzyme systems that affect a variety of biochemical processes in the body, including as protein synthesis, blood glucose control, blood pressure regulation, and muscle and nerve function [1-3].Magnesium is necessary for the oxidative phosphorylation, glycolysis, and generation of energy. Magnesium supports muscle and neuron function as well as energy synthesis in the body, among many other vital functions.Typically, low magnesium levels don't result in any symptoms.On the other hand, persistently low levels can raise your risk of osteoporosis, type 2 diabetes, high blood pressure, and heart disease. For the majority of individuals, daily doses under 350 mg are safe.The adverse effects of magnesium can include nausea, vomiting, diarrhea, and upset stomach in some people.Magnesium is POSSIBLY SAFE UNTIL TAKEN IN VERY HIGH AMOUNTS (more than 350 mg daily).To learn more about magnesium refer
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a substance that can be broken down into simpler substances
Answers
Answer:
compound
Explanation:
hope this hepls
The following balanced equation shows the formation of water. 2H2 O2 → 2H2O How many moles of oxygen (O2) are required to react completely with 1. 67 mol H2? 0. 835 mol O2 1. 67 mol O2 3. 34 mol O2.
Answers
Answer:
CO2 carbon dioxide emissions
H20 mental breakdown
02 is form of a kind
answer is acid + alkaline equal to salt and water
The minimum collision energy between two molecules in order for them to react is called A activation energy. B dispersal energy C spontaneous energy D transition energy.
Answers
A: activation energy
hope i helped :D
Did school teach you a lot?
Did school make your life better??
Did school make you happy?
I just wanted a other opinion
Answers
Answer: it definitely did help me a lot but sometimes it doesn’t make me happy like i will get stressed but it passes.
Explanation:
what is an electron ?state it's relatively mass and charges.
Answers
Answer:
a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
mass: 9.1093837015 × 10−31 kg
charges: fundamental physical constant expressing the naturally occurring unit of electric charge, equal to 1.602176634 × 10−19 coulomb.
Explanation:
good luck !<3
1. "3D" option for Water. Why are the three circles different colors?
3. How many elements and atoms are in the compound 2Cl(CHO)2?
4.“Playground" option and make the largest molecule you can that has a name. What is the name and chemical formula of your molecule?
why do we adjust coefficients when balancing chemical equations and not subscripts?
Answers
Answer:
By changing the coefficients you change the amount you have of certain compounds in the equation, whereas changing the subscript would change what compounds are actually in the equation because it would change the ratio of how many atoms of each element are in a compound.
For Example:
Outside of Balancing Equations, [tex]NO_{2}[/tex] (Nitrite) and [tex]NO_{3}[/tex] (Nitrate) are different because one forms a strong acid while the other forms a weak acid based on how many oxygen atoms are added to the compound. So in a chemical equation, if you change the subscripts, you change the entire compound so your reaction may be with a weak acid instead of a strong acid and give you a different product. Meanwhile, changing the coefficient changes the amount of the compound you have for the reaction in order to maintain the Conservation of Mass Law.
Two balloons hold two different gases. The gases are held at the same pressure, volume, and temperature. Which quantity can differ between the two gases?(1 point) the gas constant of each gas the gas constant of each gas the molar volume of each gas the molar volume of each gas the mass of each gas the mass of each gas the number of moles of each gas
Answers
Answer:
the mass of each gas
Explanation:
Two balloons hold two different gases. The gases are held at the same pressure, volume, and temperature. Which quantity can differ between
the two gases?(1 point)
the gas constant of each gas
the molar volume of each gas
the mass of each gas
Two balloons hold two different gases. The gases are held at the same pressure, volume, and temperature. Which quantity can differ between the two gases?(1 point) the gas constant of each gas the gas constant of each gas the molar volume of each gas the molar volume of each gas the mass of each gas the mass of each gas the number of moles of each gas
the number of moles of each gas
PV = nRT
The gases have the same P.V, T and n
R is constant AND SO constant for both
the only difference is the molar mass of the gas
for the same number of moles, the balloons will have different weights depending on the gas
so the answer is
the mass of each gas