Given the incomplete equation 4al + 3o2 → 2x, what compound is x?
a) alo
eliminate
b) al2o3
c) al3o2
d) al3o4

Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate and carbon dioxide. this damages buildings and statues made of limestone. which solution of sulfuric acid will damage these structures more quickly? a. 0.001% b. 0.005% c. 0.010% d. 0.015%

Which material burns faster? metal aluminum

Helium decays to form lithium. which equation correctly describes this decay?