For 2 H₂ + O₂ → 2 H₂O: how many grams of water are produced from 16 g of O₂ (M = 32) reacting completely?
- Acheck_circle
18 g
- B
36 g
- C
32 g
- D
9 g
Explanation
16/32 = 0.5 mol O₂ → 1.0 mol H₂O (ratio 1:2). 1.0 × 18 = 18 g.
AP Chemistry· difficulty 3/5
For 2 H₂ + O₂ → 2 H₂O: how many grams of water are produced from 16 g of O₂ (M = 32) reacting completely?
18 g
36 g
32 g
9 g
Explanation
16/32 = 0.5 mol O₂ → 1.0 mol H₂O (ratio 1:2). 1.0 × 18 = 18 g.
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