An isotope of phosphorus has a half-life of 14 days. if you started with a 500 gram sample, how
much would remain after 28 days?

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%

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt