ons 9-12 OnOff Item 7 What can be calculated if the concentration of a reaction’s products and reactants are known, as well as the coefficients of each in the balanced equation? the rate of the reaction Gibbs free energy the entropy of the reaction the equilibrium constant

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?

Hello.the answer is  hydrosphere, geosphere, and biosphere  have a nice day