Answer:
B
Explanation:
It is a gas and therefore according to particle model of matter it has large spaces between them and does not have a definite shape
The balanced equation is:

Then proceed with the following equations.

The answer is

.
Answer:
battery. you use it for your remotes. vinegar. you use vinegar for cooking of cleaning. nail polish remover. you use this for removing nail polish
Decomposition,because 1 breaks down into 2
Aluminum is 26.982 grams per mole, so 26.982/19.9 will give you the moles 1.3558794