What mass of water is produced when 8.0g of hydrogen reacts with excess oxygen?

[H = 1, O = 16]

  • A 36.0g
  • B 8.0g
  • C 72.0g
  • D 16.0g

The correct answer is C. 72.0g

2H2 + O2 → 2H2O

4 → 36

8 → X

X → (8/6) * 36

= 72.0g

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