10

Question 1

Temperature

Answer 1

Measures kinetic energy/random motions of the components of a substance

Question 2

Energy

Answer 2

The ability to do work or produce heat

Question 3

Energy

Answer 3

The ability to do work or produce heat

Question 4

Heat

Answer 4

Flow of energy due to temperature difference

Question 5

Energy flows
90 10

Answer 5

From hot to cold
Heat ends up distributed even 50 50

Question 6

Cold

Answer 6

Energy leaving the body

Question 7

Exothermic

Answer 7

Energy is released
Burning wood
Freezing

Question 8

Endothermic

Answer 8

Energy is absorbed
Ice pack
Melting/boiling

Question 9

Units for energy

Answer 9

Calorie and Joule

Question 10

Calorie

Answer 10

The amount of energy required to raise the temperature of 1g of WATER by 1C

Question 11

Calorie has a ____ while food calories have a
food calories are

Answer 11

Little c BIG C
1000x bigger

Question 12

SI metric system unit for heat energy

Answer 12

Joule

Question 13

1 calorie is

Answer 13

4.184 J

Question 14

Avagadros number?

Answer 14

6.02x10^23

Question 15

Specific heat

Answer 15

The amount of energy required to raise the temperature of a substance by 1C
4.18J/g C

Question 16

Change in heat formula

Answer 16

Q = ms delta t
Q is the heat required
M is mass IN GRAMS
S- 4.18
DELTA T= change in temperature

Question 17

If delta H is negative

Answer 17

It is releasing heat
It is exothermic

Question 18

How to get empirical formula

Answer 18

Convert g to moles
Put the moles as subscripts
Divide all by the smallest one round if close
Multiply to get whole number

Question 19

Treat percentages as

Answer 19

Grams

Question 20

How to get molecular formula

Answer 20

Add up the mass of the Empirical formula. Divide the given MolM by the EFM. Multiply EFM by this number