What is the coefficient of hydrogen, H 2, when the following equation is balanced? Al + H 2SO 4 → Al 2(SO 4) 3 + ? H 2

3

Explanation:

Balancing the equation:

Original equation: Al + H2SO4 → AL2(SO4)3 + H2

We see that in aluminum in AL2(SO4)3 there is a subscript 2.

We put a 2 in the front of the reactant Al.

We also see a subscript 3 behind (SO4).

We add a 3 in front of H2SO4.

Now we have to balance the H2 on both sides. We add a 3 in front of the H2 on the right as there is 3 H2 molecules on the left.

2Al + 3H2SO4 → AL2(SO4)3 + 3H2

I hope it helps :)

it would be a gas formation

answer: mole of the gas

answer: mole of the gasexplanation: