Chapter 9

Question 1

Which 3 elements come first with oxidation?

Answer 1

F then O then N

Question 2

Do you write a ‘1’ when balancing equations?

Answer 2

No

Question 3

What are the 5 types of reactions?

Answer 3

Synthesis (S), Combustion (C), Decomposition (D), Single replacement (SR), and Double replacement (DR)

Question 4

What kind of reaction would the following formula be?:
Ax + By —> Ay + Bx

Answer 4

DR

Question 5

What kind of reaction would the following formula be?:
A + Bx —> Ax + B

Answer 5

SR

Question 6

What kind of reaction would the following formula be?:
AB —> A + B

Answer 6

D

Question 7

What kind of reaction would the following formula be?:
A + 02 —> AO (With CO2 + H2O as products)

Answer 7

C

Question 8

What kind of reaction would the following formula be?:
A + B —> AB

Answer 8

S

Question 9

What kind of reaction would the following equation be?:
Na (s) + H2O (l) —> NaOH (aq) + H2 (g)

Answer 9

SR

Question 10

What kind of reaction would the following equation be?:
CO (g) + O2 —> CO2

Answer 10

S

Question 11

What kind of reaction would the following equation be?:
FeS (s) + HCl (aq) —> FeCl2 (aq) + H2S

Answer 11

DR

Question 12

What kind of reaction would the following equation be?:
NaNO3 (s) —> NaNO2 (s) + O2

Answer 12

D

Question 13

What kind of reaction would the following equation be?:
CH4 (g) + O2 —> CO2 (g) + H2O (g)

Answer 13

C

Question 14

What oxidation number does F always have?

Answer 14

-1 (No exceptions)

Question 15

In a compound, what must the sum of oxidation numbers be?

Answer 15

0, the compound must be neutral

Question 16

In LEO goes GER, what does LEO mean?

Answer 16

Losing Electrons is Oxidation

Question 17

In LEO goes GER, what does GER mean?

Answer 17

Gaining Elections is Reduction

Question 18

The oxidation of a lone element is always what?

Answer 18

0

Question 19

Oxygen has a -2 oxidation except for which 2 scenarios?

Answer 19

Except for Peroxides, and with F

Question 20

When does H have an oxidation of +1?

Answer 20

In covalent compounds

Question 21

When does H have an oxidation of -1?

Answer 21

In binary compounds

Question 22

What would the oxidation number of the following be?
Na+

Answer 22

+1

Question 23

What would the oxidation number of the following be?
S

Answer 23

0

Question 24

What would the oxidation number of the following be?
O-2

Answer 24

-2

Question 25

Would the following be an Oxidation or a Reduction equation?
Zn —> Zn+2 + 2e-

Answer 25

Oxidation

Question 26

What would the oxidation number of the following be?
2e- + Fe+2 —> Fe

Answer 26

Reduction