Select the correct answer. What change takes place when a liquid absorbs heat energy without increasing its temperature?
A
the pressure increases
B
it vaporizes
с.
it solidifies
D.
the volume decreases

It vaporizes.

Explanation:

When a substance absorbs heat energy and doesn't increase its temperature, that means it's going through a change of phase.

The next change of phase for a liquid is turning to a gas, so it vaporizes.

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"

it's c. elements are placed in rows based on how may valencies electrons have.