The equation for water is cap h sub 2 plus cap o sub 2 rightarrow cap h sub 2 cap o To balance the equation, which coefficient should be placed in front of cap h sub 2 and cap h sub 2 cap o ?

The balanced equation is 2H₂ + O₂ → 2H₂O. This gives 4 hydrogen atoms and 2 oxygen atoms on each side, so the coefficient in front of both H₂ and H₂O is 2. The correct choice is 2.

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