# of neutrons # of electrons
Mass #
# of protons
Atomic #
Symbol
Р
15
28
AL"
38
38
80
119
50
159 Sn
84
84
210
8
7
10

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

What changes occur in the reaction indicated by the equation? check all that apply. the hydrogen nucleus loses protons. the oxygen nucleus gains protons. the bond in h2 is broken, and new bonds are formed between hydrogen and oxygen atoms. each electron associated with a hydrogen atom is shared with an oxygen atom.

•what conclusions can you make about the relationship between the volume of a gas and its temperature? • what conclusions can you make about the relationship between the volume of a gas and its pressure? • what possible variables have you not accounted for? as you did the procedures, is it possible that the atmospheric pressure may have changed? if it did change over the course of your experiment, then how would your results have been affected?