Match the effects on the concentration of SO2 gas when the following changes occur after initial equilibrium has been established in this system (N. C = no change).
2SO2(g) + O2(g) 2SO3(g) + 46.8 kcal
pressure increases
increase [02]
increase volume of chamber
adding a catalyst
raising the temperature

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 .

The answer is not c