Is sliver or aluminum most often used in magnets

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%

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes