The half- life of 1-137 is 8.07 days. if 100 grams are left after 40.35 days, how much grams were in the original sample?

The balanced chemical equation for this lab is: 3cucl2(aq) + 2al(s) 3cu(s) + 2alcl3(aq) if 10.5 g copper chloride react with 12.4 g aluminum, what is the limiting reactant?

Draw the structure for 5-isopropyl-2-methyl-3-nonene

Which process transfers heat from inside earth to its surface? convection currents in mantle pulling away of tectonic plates drawing in of tectonic plates convection currents in crust