Answer:
B
Step-by-step explanation:
-The balanced chemical reaction of oxygen and water is written as:

-You notice that 2 moles of hydrogen gas reacts with one mole of oxygen gas to form 2 moles of water
-Hence, the correct choice is B
The answer is 16/21 because it is equivalent to 32/42
Answer: 151.98 I just took the test!
Step-by-step explanation:
I think it’s D
Sorry if it’s wrong