If 2.0 g of iron (II) oxide reacts with carbon monoxide, what temperature change will be observed if all of the heat from the reaction transfers into 2.0 kg of water?

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.

What relationship exists between an enzyme and a catalyst?

Which can be observed only in a microscopic view? a) structure of a muscle cell b) shape of a soybean plant c) foam insulation d) x-ray of a knee joint