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Oxygen masses joined to a fixed mass of hydrogen in water and in hydrogen peroxide are in what ratio?
A2 : 1
B1 : 2
C1 : 1
D1 : 16
Answer & Solution
Correct answer: B. 1 : 2
2 g of hydrogen combines with 16 g of oxygen in water and 32 g in hydrogen peroxide, a ratio of 16 : 32 = 1 : 2.
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