Chemistry 2A

Question 1

Chemical reactions

Answer 1

Combination
Dissociation/decomposition
displacement
partner exchange
redox

Question 2

Combination reactions

Answer 2

2 or more substances combine to form a single substance

haemoglobin + Oxygen –> oxyhaemoglobin

Hb + O2 -> HbO2

Question 3

Decomposition/dissociation

Answer 3

The breakdown of substances

HCl –> H+ + Cl-

Question 4

Displacement

Answer 4

The displacement of less reactive to higher reactive elements

K+ calcium sulphorate –> Ca2+ potassium polystyrene sulphonate

Question 5

Partner exchange

Answer 5

AB + CD –> AC + BD

antiacids to stop heartburn, pain from HCl produced in the stomach

Question 6

Redox

Answer 6

OIL: oxidation (loss of e-, gain of bonds)

RIG: reduction (gain of e-, loss of bonds)

Question 7

Redox examples

Answer 7

breaking down glucose to produce ATP

cellular respiration

Question 8

enzymes

Answer 8

lock and key mechanisms

catalyst of a rate of chemical reaction but doesntvchange itself

specific to a particular substrate and closely related substrates

Question 9

Organic chem

Answer 9

C and H bonds except CO, CO2, CO3 2-

Question 10

Inorganic chem

Answer 10

No C, synthesis and behaviour or inorganic and organometallic compounds

Question 11

Aromatic

Answer 11

benzene, saturated, less reactive

Question 12

Aliphatic

Answer 12

1bond (saturated) 2&3 bonds (unsaturated), c atoms

Question 13

alkanes

Answer 13

saturated

Question 14

alkene, alkyne

Answer 14

unsaturated

Question 15

alchol

Answer 15

C-OH

Question 16

glycerol

Answer 16

many OH groups

Question 17

aldehyde

Answer 17

H-C=O
|

Question 18

ketone

Answer 18

-C=O
|

Question 19

amine

Answer 19

-NH2

Question 20

carboxylic acid

Answer 20

OH-C=O
|

Question 21

polar

Answer 21

most polar is methane, and it gets lower as it goes down