Determine the volume, in liters, of 3.2 mol of CO2 gas at STP.

What are transitions between a liquid and a solid called? identify which way they are transitioning

Compare and contrast physical changes with chemical changes.

What mass of iron must be in a hot pack to provide -335kj of heat when the iron reacts with oxygen and is converted to iron (111) oxide according to the following thermochemical equation? 2fe(s) + 1.5o2(g)—> fe2o3(s) delta h= -824.2kj/mol