Which equation is a decomposition reaction? Li2CO3 Right arrow. Li2O CO2 Zn HCl Right arrow. ZnCl2 H2 Na2O CO2 Right arrow. Na2CO3 C6H12O6 O2 Right arrow. CO2 H2O.

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 .

C. definite shape, definite volume. that is a solid.

It must be measured in k.hope my answer is to you : )