6. What is a solution an example of? A) element
B) heterogeneous mixture
(C)compound
D) homogeneous mixture

How can parts of a solution be separated by chromatography?

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

If energy was included in a chemical reaction, on which side of the equation would it be written for an endothermic reaction?