# science

The decomposition of water into hydrogen gas H2 and oxygen gas O2 can be modeled by the balanced chemical equation
A) H2 + O2 → H2O
B) H2O → H2 + O2
C) 2H2 + O2 → 2H2O
D) 2H2O → 2H2 + O2

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1. since you want to produce H2O, clearly not B or D
Now, which other equation is balanced?

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oobleck
2. oops. Sorry. Not A or C. I read it backwards.

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oobleck
3. what im confused

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4. is it d i think its d

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5. Yes, D
2 H2O molecules have
4 H atoms or 2H2
and 2 O atoms

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Damon

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