Which of these is true of a chemical reaction
a. energy is either released or absorbed.
b. energy is always absorbed.
c. energy is always released.
d. energy is not transferred.

Which produce would best increase the amount of heat energy that is actually gained by calorimeter b

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

How do you convert 4 mmol of bromobenzene to ml?