2Al(s) + 3H2SO4(aq) ==> Al2(SO4)3(aq) + 3H2(g)
103
There are two elements, carbon and hydrogen.
The current periodic table contains 118 elements, as of April 2010, but many more may still be discovered.
117 elements
There are two hydrogens in H2SO4. So there are six hydrogens in 3H2SO4.
There are 24 hydrogen atoms present in 3H2SO4. This calculation is done by multiplying the subscript of the hydrogen in H2SO4 (which is 2) by the coefficient in front of the compound (which is 3).
The balanced equation for aluminum reacting with sulfuric acid is 2Al + 3H2SO4 -> Al2(SO4)3 + 3H2.
57.6
2In + 3H2SO4 --> In2(SO4)3 + 3H2
HYDROGEN
2Al(s) + 3H2SO4(aq) ==> Al2(SO4)3(aq) + 3H2(g)
FeCl3 + H2O4-2 +Zn
118 elements
When sulfuric acid reacts with hematite (iron oxide), it forms iron sulfate and water. The chemical equation for this reaction is: Fe2O3 (hematite) + 3H2SO4 (sulfuric acid) → Fe2(SO4)3 (iron sulfate) + 3H2O (water).
There are 118 elements on the periodic table.
92 elements