Equal amounts of heat are added to equal masses of substances A and B at the same temperature, but substance B gets hotter. What is true of their heat capacities (c)?

The one with the lower specific heat.
Explanation:
A substance's specific heat tells you how much heat must be added to / removed from a
1-g
sample of this substance in order to get its temperature to change by
1
∘
C
.
When energy in the form of heat is absorbed, a substance's specific heat tells you exactl;y how much heat is needed in order to increase the temperature of
1 g
of this substance by
1
∘
C
.
This means that the higher the specific heat of a substance, the more heat will be needed in order to get the temperature of
1 g
to increase by
1
∘
C
.
In your case, two substances, let's say
A
and
B
, start at the temperature,
200
∘
C
and they both absorb
150 J
of heat. Moreover, they both have the same mass.
If the specific heat of
A
is higher than the specific heat of
B
, you can say that it will take more energy to raise the temperature of
A
by
1
∘
C
than to raise the temperature of
B
by
1
∘
C
.
So, if
B
absorbs
150 J
and gets to a final temperature
T
B
, the fact that
A
has a higher specific heat will tell you that absorbing
150 J
of heat will not get the final temperature of
A
,
T
A
, to the same value as
T
B
.
You can thus say that
T
A
<
T
B
The substance with the lower specific heat will heat up more than the substance with the higher specific heat.

1. why does the same side of the moon always face earthc.the rotational period of the moon is equal to one revolution around earth2. which is greater the moons period of rotation or its period of revolution  b.the moons revolution period around earth3.what was the major accomplishment of the apollo missions  c.sending the first human into space4. which of these space missions involved the deployment of lunar roversa. voyager 15. which scientists are going to explore next on kepler-186fd. evidence of existence of life6.which mission is not going to explore the outside of the solar  systemb.safir7.which technology limit the future of space explorationb. scientist must first develop certain technologies before missions can be completed.