chemistry ch 8

Question 1

victor fries

Answer 1

mr. freeze

Question 2

four signs of a reaction

Answer 2

heat/light, color change, gas, and precipitation

Question 3

diatomic molecules

Answer 3

H, N, O, F, Cl, Br, I

Question 4

Single displacement

Answer 4

Negatives pushes negatives out and positives pushes out positives.
Removes hydrogen from water.

Question 5

Metal hydroxide

Answer 5

Metal oxide and water

Question 6

Acids

Answer 6

They remove water

Question 7

Metal carbonate

Answer 7

Metal oxide and carbon dioxide

Question 8

Metal chlorate

Answer 8

Metal chlorates and oxygen gas

Question 9

Hydrocarbon

Answer 9

Made of carbon and hydrogen

Question 10

→

Answer 10

“Yields”; indicates result of reaction

Question 11

→←

Answer 11

Used in place of a single arrow to indicate a

reversible reaction

Question 12

(s)

Answer 12

solid

Question 13

(aq)

Answer 13

dissolved in water

Question 14

(l)

Answer 14

liquid

Question 15

↓

Answer 15

Alternative to (s), but used only to indicate a
precipitate

Question 16

(g)

Answer 16

gas

Question 17

↑

Answer 17

Alternative to (g), but used only to indicate a
gaseous product

Question 18

heat ⎯⎯Δ→
or
⎯⎯→

Answer 18

reactants are heated

Question 19

2 atm

⎯⎯→

Answer 19

Pressure at which reaction is carried out, in

this case 2 atm

Question 20

pressure

⎯⎯⎯→

Answer 20

Pressure at which reaction is carried out

exceeds normal atmospheric pressure

Question 21

0°C

⎯⎯⎯→

Answer 21

Temperature at which reaction is carried out,

in this case 0°C

Question 22

MnO2

⎯⎯→

Answer 22

Formula of catalyst, in this case manganese

dioxide, used to alter the rate of the reaction