What is classified as a pure substance.
a: compound
b: colloid
c: solution
d: homogeneous mixture

Noble gases are the most reactive elements on the periodic table. a. true b. false

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.

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.