The equation shows lead reacting with sulfuric acid to produce lead sulfate and hydrogen gas.

pb(s)+2so4(aq)-> pbso4(s)+h2(g)

which type of chemical reaction does this equation represent?
synthesis
decomposition
single replacement
double replacement

This equation represents a single replacement reaction. Single replacement reactions consist of one element reacting with one compound on the reactant side (left side of the equation) and they form one new element and one new compound on the product side of the equation (right side).