Andre is packing for a move to kentucky. he needs to pack 20 small paperback books whose total mass is 5 kg and some pillows whose total mass is 5kg. which will need the larger box?

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%

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots