How many grams of water form when 10 g of hydrogen burns completely in oxygen? (; H = 1, O = 16)
Answer and explanation
Correct answer: C. 90 g
- Step 1: Moles of H2 are , and each gives one mole of water (18 g): g. Answer: 90 g. Why not the others: 180 g, 80 g and 20 g don't fit.
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