What will be the subscripts for the formula unit ca_n_?

Part of molten rock at mid-ocean ridges

According to the tide table below what time of day will the highest tide occur?

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%