Question

3. The law of definite proportions helps us explain why water will always

A. break down into gas when heated.
B. be released or used up in a chemical reaction.
C. consist of a particular proportion of hydrogen and oxygen.
D. be used as a solvent to dissolve other compounds.

Answer 1

C.) The law of definite proportions helps us explain why water will always "consist of a particular proportion of hydrogen and oxygen"

Hope this helps!

Answer 2

The correct answer is:

C.  consist of a particular proportion of hydrogen and oxygen.