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2H2 + O2à2H2O How many water molecules are created when 32 grams of oxygen react completely with 4 grams of hydrogen? A. 2 B. 20 C. 6.02 × 1023 D. 1.2 × 1024
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2H2 + O2à2H2O

How many water molecules are created when 32 grams of oxygen react completely with 4 grams of hydrogen?
A. 2
B. 20
C. 6.02 × 1023
D. 1.2 × 1024

User Milahu
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4.0k points

1 Answer

3 votes
A. 2 because for every 2 hydrogen atoms, there is 1 oxygen atom in water. If you have 4 hydrogen atoms, only 2 oxygen atoms can completely react with them.
User Jonathan L
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