What is the PH of a 0.00001 M aqueous solution of HCI

What is the equilibrium constant of aa+bb=cc+dd

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%

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule