Methanol and methylamine are both combustible fuels. How many grams of methylamine must be combusted to raise the temperature of 397 g of water from 20.0°C to 43.0°C? Assume that the transfer of heat from the flame to the water is 100% efficient. g

U whay do you need with?

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?