Identify the most common reaction conditions for the dehydration of 2,3-dimethyl-2-pentanol. select all that apply. a. the presence of a platinum catalyst. b. the presence of excess h2o. c. the presence of acetone. d. the presence of a base catalyst. e. the presence of an acid catalyst. f. the presence of heat.

Abbreviated as mg-25.

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 .

Sorry i dont understand the question can you rephase it?