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Water has 16 g oxygen per 2 g hydrogen; hydrogen peroxide has 32 g. What is the oxygen mass ratio?
A2 : 3
B1 : 2
C1 : 4
D3 : 2
Answer & Solution
Correct answer: B. 1 : 2
Oxygen masses 16 g and 32 g combining with the same 2 g of hydrogen are in the simple ratio 1 : 2.
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