Answer the question below based on the periodic table entry for bromine.
how many neutrons does bromine have?
10
35
45
80

Summarize possible ways in which phases of matter could combine to form a solution.

What is the percent by mass of oxygen in fe2o3

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.