Question: How many molecules of O2 will react with 6.022 1023 molecules of H2 to make water? The reaction is 2H2(g) + O2(g) 2H2O().

How many molecules of O2 will react with 6.022 × 1023 molecules of H2 to make water? The reaction is 2H2(g) + O2(g) → 2H2O(ℓ).

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