Question

I have 3.5 mol H2O. How many moles of hydrogen atoms are in the sample of water?
A) 3.5 mol
B) 1 mol
C) 7 mol
D) 13.5 mol

Answer 1

Answer:

7

Explanation:

there are 2 moles of H for every 1 mole of O, so multiply the 3.5 moles by 2