1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tekilochka [14]
3 years ago
10

Which refrigerant is known to destroy ozone?

Chemistry
2 answers:
Degger [83]3 years ago
8 0

Answer:

tetrafluoroethane

Explanation:

Its an HCFC, which are the refrigerants that destroy the ozone layer.

guajiro [1.7K]3 years ago
4 0

Answer:

Freon.

Explanation:

Brainliest plz???

You might be interested in
The metric system of units is known as
andre [41]

Answer:

International System of Units (SI)

Explanation:

I hope it helps :)

6 0
3 years ago
How would the percent yield be affected if the na2co3 was not thoroughly dried in the crucible before weighing?
yawa3891 [41]
The percent yield would depend on your calculated amount vs the actual massed amount you received.
6 0
3 years ago
Caffeine has the molecular formula, C8H10N4O2. What is the percent composition of caffeine?
Debora [2.8K]

Answer:

b) 49.48% C, 5.19% H, 28.85% N, and 16.48% O

Explanation:

we find the mass for each element in one mole by multiplying the number of atoms in one molecule with the atomic mass

mC=8Ac=8*12=96g

mH=10AH=10*1=10g

mN=4AN=4*14=56g

mO=2AO=2*16=32g

by adding the masses together we find the molar mass of the molecule

M=mC+nH+mN+mO=96+10+56+32=194g/mole

we apply the rule of threes to find the percentage of each element

194g..96gC..10gH...56gN....32gO

100g....a...........b...........c.............d

a=(100*96)/194=49.48%C

b=(100*10)/194=5.19%H

c=(100*56)/194=28.85%N

d=(100*32)/194=16.48%O

3 0
3 years ago
How many moles of nitric acid are present in 50.0 g?
musickatia [10]

Answer:

3150.5g

Explanation:

1 mole of nitric acid weighs 63.01g

so i did 63.01g times 50.0g which equals 3150.5g

g= Grams

Hope This Helped

8 0
2 years ago
Read 2 more answers
In an experiment, 0.42 mol of co and 0.42 mol of h2 were placed in a 1.00-l reaction vessel. at equilibrium, there were 0.29 mol
Likurg_2 [28]
To determine the Keq, we need the chemical reaction in the system. In this case it would be:

CO + 2H2 = CH3OH

The Keq is the ration of the amount of the product and the reactant. We use the ICE table for this. We do as follows:

          CO           H2             CH3OH
I         .42           .42                    0
C     -0.13      -2(0.13)            0.13
-----------------------------------------------
E =    .29           0.16               0.13

Therefore, 

Keq = [CH3OH] / [CO2] [H2]^2 = 0.13 / 0.29 (0.16^2)
Keq = 17.51
4 0
4 years ago
Other questions:
  • Consider the reaction zn + no− 3 → nh3 + zn(oh)2− 4 carried out in an aqueous basic solution. when the equation is properly bala
    8·1 answer
  • What are the parts of the water system? Label the water wheel to show the matter and forms energy that flow through the system.
    13·1 answer
  • As a substance changes phase from a gas to liquid to solid:
    12·2 answers
  • Would you expect salts of the gold(I) ion, Au+, to be colored? Explain.
    6·1 answer
  • What does the host mean when he says that the acid has "donated a proton" to the water?
    7·1 answer
  • A student placed a crystal of a blue dye at the bottom of a beaker of water. After 5 minutes, the crystal sa
    13·1 answer
  • Question 3 (5 points)
    5·1 answer
  • What is the average of the two weights of a nickel and dime. Dime is 2.26g and nickel is 4.97g?
    10·1 answer
  • Why do elements in the same group have similar physical and chemical properties
    14·1 answer
  • What dynasty came after China's Five Dynasties and Ten Kingdoms?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!