Answer:
A mature leafy tree produces as much oxygen in a season as 10 people inhale in a year." "A 100-foot tree, 18 inches diameter at its base, produces 6,000 pounds of oxygen." "On average, one tree produces nearly 260 pounds of oxygen each year. Two mature trees can provide enough oxygen for a family of four.
Explanation:
hope this helps
Equation Given : Al^(3+) + Na3PO4 ==> 3Na^+ + AlPO4
Given that 61µg of aluminum phosphate precipitate formed, calculate the micromoles of aluminum ions in 50 mL of river water. (1µg = 1 x 10^(-6)g)
1 mols of Aluminium ion forms 1 mol aluminium phosphate
Molar mass of AlPO_4
27+31+16(4)58+48106uMoles of AlPO_4
61µg/1060.000061/1065.75×10^{-7}57.5µmolMoles of Al3+=57.5µmol
Fill In the
476 nm = 4.76 x 10^? Cm
Recall that 1 nm 1 x 10 m and 1 cm = 1 x 10-2 m. You will want to memorize the metric conversion factors and those covered in this lesson!
Answer:
I gotthe answer
Explanation:
The explanation is This
Now writing the value in sentific term
It would look like
[tex]4.76 \times {10}^{2} \times {10}^{ - 9} [/tex]
[tex]4.76 \times {10}^{2 - 9} [/tex]
4.76
[tex]4.76 \times {10}^{ - 7} [/tex]
Now in centimeter
[tex]4.76 \times {10}^{ - 5} [/tex]
PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE
How might the ability of magnets to attract or repel other magnets relate to
the floating rings?
Answer:
Using magnets to repel each other is one way to try to achieve a frictionless bearing. In practice, it can be difficult to remove all friction. While a pair of magnets will repel each other, they are not stable in this condition. One magnet won't simply float forever above another magnet.
Explanation:
My cousin cant figure this out and neither me so maybe yall can help?
Answer:
I believe the Answer is B
Can someone please help me? :(
Answer:
C I think
Explanation:
A duck isn't supposed to bring a sandwich to people, so i believe that the duck learned how to do that. (Sorry if it's wrong)
When determining the cell potential for a hypothetical galvanic cell containing two different materials, how do we determine which substances comprise the anode and which comprise the cathode
To determine the substance that comprises the anode and the cathode in a galvanic cell is by determing ;
The material with the larger (more positive) standard reduction potential that will be the cathode.
Characteristics of a galvanic cellIn a galvanic cell, oxidation which leads to the loss of elctrons occurs at the anode, while reduction ( addition of elctrons ) occurs at the cathode. therefore the materials with a more positive standard reduction potential will be the cathode of the galvanic cell.
Hence we can conclude that The material with the larger (more positive) standard reduction potential will be the cathode.
Learn more about Galvanic cell : https://brainly.com/question/25606597
#SPJ1
disadvantages of hard water
Answer:
Here are some disadvantages
Explanation:
Hard water does not pose a health threat.
Hard water can contribute to dry skin and hair.
Hard water is unfit for washing as it is difficult to form lather with soap.
Trimming of kettles will take place due to the formation of magnesium and carbonates of calcium.
The Taste/Smell
Lather
Dishwashing Ability
Clothes-Washing Ability
Staining
Limescale Buildup
Corrosion
What is the name of bird W?
Answer:
woodpecker it's easy lil lol
What is the molar concentration of HBr if 25 mL of the acid is titrated 15.3 mL of 0.5 M KOH?
Round answer to 2 decimal places.
A solution is prepared by dissolving 17. 1 g of sucrose (C12H220,1) in 275 g of H2O.
a. What is the molar mass of sucrose?
b. What is the molality of that solution?
Answer:
If you know the formula to use you should have no trouble getting the answers.
molality = mols/kg solvent.
mols sucrose = g/molar mass
kg solvent = 0.275 kg.
What kind of property is melting point? an atomic property , , , an atomic property , , a physical property , a physical property , , an acidic property , an acidic property , , a chemical property
Answer:
physical property has a melting point
How would the graph below change if a catalyst were added to the reaction?
2
Potential Energy
3
Reaction Progress
A. Part 1 would be higher, and part 2 would be lower.
B. Parts 1, 2, and 3 would be lower.
C. Part 2 would be lower, and parts 1 and 3 would be unchanged.
D. Parts 1 and 3 would be higher, and part 2 would be unchanged.
In an energy profile diagram, part 2 the initiation or activation energy is lowered and parts 1 and 3 would be unchanged; option C.
What is the effect of addition of a catalyst to reaction?A catalyst is a substance which alters the rate of a chemical reaction but is not chemically altered in the reaction.
Addition of a catalyst to a reaction lowers the activation energy of that reaction.
Thus, in an energy profile diagram, part 2 the initiation or activation energy is lowered and parts 1 and 3 would be unchanged.
Learn more about activation energy at: https://brainly.com/question/26724488
#SPJ1
In an energy profile diagram, in part 2 the initiation or activation energy is lowered and parts 1 and 3 would be unchanged. Hence, option C is correct.
What is the effect of the addition of a catalyst to the reaction?The addition of a catalyst provides an alternate pathway/mechanism with a lower energy of activation, thus speeding up the reaction.
Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism.
Thus, in an energy profile diagram, in part 2 the initiation or activation energy is lowered and parts 1 and 3 would be unchanged.
Learn more about activation energy at:
brainly.com/question/26724488
#SPJ1
Write symbol and ionic equations to show the reaction
between magnesium and oxygen to form magnesium
oxide
Answer:
2Mg + O2 ⇒ 2MgO
PLEASE HELP: You have been given 0.507 moles of cesium fluoride (CsF), determine the mass in grams of cesium fluoride that you have.
Answer:
C because 77.0 CsF
Explanation:
That is the correct answer because I have that homework and i got it right
If you had 100 grams of wax(C25H52), predict...
1.how many grams of o2 would be needed to react with 100 grams of wax
2.How many CO2 would be produced?
3.How many grams of H2O would be produced?
Answer:
2 i think should be the correct answer
Explanation:
3 grams of Aluminum was heated from 20 °C to 662 °C while absorbing
1728 I of heat. What is the specific heat of Aluminum?
The specific heat capacity of Aluminum of mass 3 grams that was heated from 20 °C to 662 °C while absorbing 1728 J of heat is 12.5 J/g°C.
What is specific heat capacity?The specific heat capacity of a substance can be calculated using the following formula:
Q = m × c × ∆T
Where;
Q = quantity of heat absorbed or releasedm = mass of substancec = specific heat capacity∆T = change in temperatureAccording to this question, 3 grams of Aluminum was heated from 20 °C to 66.2 °C while absorbing 1728 J of heat.
1728 = 3 × c × (66.2 - 20)
1728 = 138.6c
c = 1728 ÷ 138.6
c = 12.5 J/g°C
Therefore, the specific heat capacity of Aluminum of mass 3 grams that was heated from 20 °C to 662 °C while absorbing 1728 J of heat is 12.5 J/g°C.
Learn more about specific heat capacity at: https://brainly.com/question/1747943
What mass of kool-aid is needed to make a 0.5-M solution from 100 mL?
Answer:
but purely citric acid synthetic Acid whose moller mass is equal to 192 g per mole. Okay, so here we have Modernity is even McGarity is equal to 0.5 M and we have volume, so Volume is equal to 200 mililiters is equal to 0.1 liter Okay, so they are asking to calculate the mass of what u have Okay. So first of all, if we want to calculate the mass of then we have to calculate the number of moles. So maturity is equal to the number of moles per volume in liters . So you mean zero point sorry from this one number of moles is equal to So N is equal to m multiplied very weak. So that is equal to 0.1 and 0.5. So that is equal to 0.05 moles. Okay, now the mask is equal to the mass of cool eh is equal to the number of Okay. Number of 0.5 and it is multiplied by 92 g per mole. Then it is equal to 9.6 g. So this is the mass of a present. A 0.500 ml
When you calculate the Ksp of calcium fluoride, CaF2, and the concentration of the F- ion is 4.2 x 10-4M, what is the concentration of the Ca2 ion
Calculate its molar solubility in a saturated aqueous solution that is also 0.050 M in fluoride ion, F-. Ksp = (x)(2x + 0.05)2. 2x = 4.210 4
what is kind of property is denisty?
Answer:
INTENSIVE PROPERTY OF MATTER
Explanation:
DENSITY IS AN INTENSIVE PROPERTY OF MATTER THAT ILLUSTRATES HOW MUCH MASS A SUBSTANCE HAS IN A GIVEN AMOUNT OF VALUE,
Can someone please help me? :(
Answer:
Roots, stems and leaves
Explanation:
A, B, and D
Hope this helps!
Answer:
A, B y D
Explanation:
Which group of compounds tastes bitter and are usually slippery when placed in water?.
Answer:
Bases
Explanation:
Soap is a common example of a base. They taste bitter (try tasting soap or shampoo) and are slippery (that is why a wet bar of soap flies out of your hands)
Which best explains the relationship between evaporation and temperature?
A liquid evaporates slower at lower temperatures because the molecules are more spread apart and are not pushed as easily from the liquid’s surface.
A liquid evaporates faster at lower temperatures because the attractions are decreased and more particles can escape the surface of the liquid.
A liquid evaporates slower at higher temperatures because the vapor pressure of the liquid is higher, so fewer molecules can escape the surface.
A liquid evaporates faster at higher temperatures because more particles have a higher speed and can overcome attractions in the liquid.
Answer:
A liquid evaporated slow at higher temperature bz the vapour pressure of the is higher so few molecule can escape the surface
Answer:
The correct answer is D. A liquid evaporates faster at higher temperatures because more particles have a higher speed and can overcome attractions in the liquid.
Explanation:
I just got it right on Edge.
Hope this helped!
Brainliest would be greatly appreciated :D
An electric motor in a bike has a voltage of 24 V and produces 240 W of power. How much current does it draw?]
Answer:
Electrical energy is the product of power multiplied by the length of time it was consumed. So if we know how much power, in Watts is being consumed and the time, in seconds for which it is used, we can find the total energy used in watt-seconds. In other words, Energy = power x time and Power = voltage x current.
The amount of current the electric motor having a power of 240 W Will draw from the 24 V supply is 10 A
What is power?This is defined as the rate in which energy is consumed. Electrical power is expressed mathematically as:
Power (P) = voltage (V) × current (I)
P = IV
How to determine the currentFrom the question given above, the following data were obtained:
Voltage (V) = 24 V
Power (P) = 240 W
Current (I) = ?
P = IV
240 = I × 24
Divide both sides by 24
I = 240 / 24
I = 10 A
Learn more about electrical power:
https://brainly.com/question/64224
#SPJ2
Determine the number of moles of water that could be produce
from 10.0 mols of hydrogen gas and 6.0 mols of oxygen gas.
If 10.0L of hydrogen gas, and 6.0L of oxygen gas were used in
problem 1, how many liters of water vapor would be produced?
PLEASE HELP <3
From the mole ratio of the gases, 10 moles of hydrogen will produce 10 moles of water, and if 10.0 L of hydrogen and 6.0 L of oxygen were used, 10.0 L of water will be produced.
What is the mole ratio of reactants in the formation of water?The mole ratio of the reactants in the formation of water can be shown from the equation below:
[tex]2H_2 + O_2 \rightarrow 2H_2O[/tex]
Mole ratio of hydrogen to oxygen is 2:1
10 moles of hydrogen will require 5 moles of oxygen, therefore hydrogen is the limiting reactant.
10 moles of hydrogen will produce 10 moles of water.
1 mole of a gas has a volume of 22.4 L.
If 10.0 L of hydrogen and 6.0 L of oxygen were used, 10.0 L of water will be produced.
Therefore, the volume ratio of gas equals mole ratio of gas.
Learn more about moles ratio at: https://brainly.com/question/19099163
student A correctly describes a chemical equilibrium is “reactant favored” and student B also correctly describes the same equilibrium as “product favored”. Can this happen? If so how?
ANSWER ASAP!!
Mercury-203 undergoes beta minus decay. the subscript in the nuclide notation, hg, is . 203 ? hg →? the element symbol produced is . it has a mass number and an atomic number . 203 80 hg → 203 81 ti ?
When Mercury-203 undergoes beta minus decay, the nucleus that is formed is 203/81Tl.
What is beta emission?A parent nucleus is said to undergo beta emission when only when an electron is lost to form the daughter nucleus. This would make the atomic number of the daughter nucelus to increase by 1.
Hence, when Mercury-203 undergoes beta minus decay, the nucleus that is formed is 203/81Tl.
Learn more about beta decay: https://brainly.com/question/25455333
#SPJ4
Answer:
Mercury-203 undergoes beta minus decay. The subscript in the nuclide notation, Hg, is ____80______
The element symbol produced is __TI__ . It has a mass number __203__ and an atomic number ___81____
80
Explanation:
Classify the following type of stoichiometry problem: How many cubic centimeters of oxygen are produced from decomposing 5.00 mL of steam? (Sec.9.3)
(a) mass–mass problem
(b) mass–volume problem
(c) volume–volume problem
(d) mole–mole problem
(e) none of the above
Answer:
volume problem
Explanation:
cubic usually means volume
How many moles of chlorine gas at 120.0 °C and 33.3 ATM would occupy a vessel of 25.5 L?
Temperature (T) = 120°C
= (120+273) K
= 393 K
Pressure (P) = 33.3 atm
Volume (V) = 25.5 L
Gas Constant (R) = PV/T
= (1*22.4)/273
= 0.082 atm.L/K.mol
Law= PV = nRT
= (33.3*25.5)
= (n*0.082*393)
= 849.15
= 32.226n
= 26.349n
= 26.3 mol Cl₂
therefore, the number of moles are 26.3 mol Cl₂.
PV = nRT
P = 33.3 atm
V = 25.5 L
n = ? mol
R = 0.08206 L•atm/K•mol
T = 120.0 °C + 273.15 = 393.15 K
Solve for moles:
n = PV/RT
n = (33.3 atm × 25.5 L)/(0.08206 L•atm/K•mol × 393.15 K)
= 26.3 mol Cl₂
explain volume and pressure at constant temperature of a gas using the kinetic molecular
Answer:
If the temperature is increased, the average speed and kinetic energy of the gas molecules increase. If the volume is held constant, the increased speed of the gas molecules results in more frequent and more forceful collisions with the walls of the container, therefore increasing the pressure
Explanation:
hope this helps
Strong nuclear forces inside the atomic nucleus tend to ____ .
a. cause nuclear decay
b. hold the nucleus together
c. make the nucleus unstable
d. push the nucleus apart
Answer: a. cause nuclear decay
Explanation: