In an exothermic reaction, chemical energy is converted to

1.thermal
2. mechanical

Compare and contrast the bohr model and the electron cloud models of the atom.

Categorize them by metal, nonmetal, in periodic tableductilenon-ductilemalleableoften gain electrons easilygood conductorpoor conductorcan be liquidselements

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.