How do ionic bonds work? How to do the ions stay together? What is specifically happening to the valence electrons in this process?

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .

B. a graduated substance

C) the increase in atmospheric pressure pushes the walls of the balloon outward thus making it  is the answer.hope i you.

H tricky one let me think and get back to u