Answer:
Decomposition reaction
Explanation:
A single reactant breaking down to form 2 or more products is decomposition
Answer : Mass
Explanation : Mass measures the amount of matter in a substance or an object.
The solution for problem 36 is in the picture attached. I am 80% sure it’s correct.
Answer:
Add G and H to determine the atomic mass for helium
Explanation:
Letter A is the characteristic of all chemical change