A chemical reaction produces sulfuric acid (H2SO4). Which atoms must be in the reactants and how many of each?
a.2 hydrogen (H), 1 sulfur (S), and 4 oxygen (O)
b. 1 hydrogen (H), 2 sulfur (S), and 4 oxygen (O)
c. 4 oxygen (O), 1 hydrogen (H), and 2 sulfur (S)

Question

A chemical reaction produces sulfuric acid (H2SO4). Which atoms must be in the reactants and how many of each?
 a.2 hydrogen (H), 1 sulfur (S), and 4 oxygen (O)
b. 1 hydrogen (H), 2 sulfur (S), and 4 oxygen (O)
c. 4 oxygen (O), 1 hydrogen (H), and 2 sulfur (S)

anonymous · Answer

I'm guessing that the answer is A. is that correct?

anonymous · Answer

A, because when you balance the equation, the number of atoms of the same element is the same in both sides, having:
H2(g) + 2O2(g) + S(s) - H2SO4