14 16 17 18
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Hydrogen has an atomic mass of 1, and oxygen has an atomic mass of 16. When a water molecule forms, two hydrogen atoms combine with one oxygen atom. What is the mass of a water molecule?
Possibilities:
- 14
- 16
- 17
- 18

18