When you heated up the reactants before the reaction does it go faster or slower and why you think so.

Yes, endothermic means it turns cold. and some chemical changes include change of tempature.

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 .

Answer it is also known as the completion state is untrue of the activation complex;