Random

Question 1

Reduction

Answer 1

When gaining an electron

Question 2

Ionic bonding

Answer 2

The electromagnetic attraction between oppositely charged ions

Question 3

Ionic

Answer 3

Metal and non-metal

Question 4

Covalent

Answer 4

Non metal and nonmetal

Question 5

Metallic

Answer 5

Metal and metal

Question 6

Covalent

Answer 6

Venn diagram

Question 7

Covalent

Answer 7

Electrostatic attraction between the positive nuclei and shared negative electrons

Question 8

Why is graphite slippery

Answer 8

• each carbon bonds to other carbons
• the layers can slide over each other
• because there is no covalent bonds between the layers
• this means they are slippery

Question 9

Metallic

Answer 9

Very good conductors of heat and electricity

Question 10

Shape of metallic

Answer 10

Giant lattice

Question 11

Why is metal good conductor

Answer 11

Because it is in a giant lattice with delocalised electrons that vibrate to pass the heat

Question 12

Polyethylene

Answer 12

Plastic bottle

Question 13

Polypropane

Answer 13

Kettle

Question 14

Reactivity series

Answer 14

Potassium 
Sodium 
Calcium 
Magnesium
Aluminium 
Zinc 
Iron
Tin
Lead
Copper 
Silver 
Gold
Potassium

Question 15

Methane

Answer 15

CH

4

Question 16

Ethane

Answer 16

C H

2 6

Question 17

Propane

Answer 17

C H

3 8

Question 18

Butane

Answer 18

C H

4 10

Question 19

Pentane

Answer 19

C H

5 12

Question 20

Hexane

Answer 20

C H

6 14

Question 21

Test for oxygen

Answer 21

Glowing splint relights

Question 22

Test for hydrogen

Answer 22

Squeaky pop

Question 23

Test for Co

2

Answer 23

Like water turns cloudy

Question 24

Finding oxygen in air

Answer 24

Gas syringe

Oxygen reacts with the copper measurement left is the amount of oxygen

Question 25

Finding Co | 2

Answer 25

Co2 is heated this expands and bubbles collect in test tube -> Co2 in test tube is the amount of Co2

Question 26

Distillation

Answer 26

Distillation is a process of separating the component substances from a liquid mixture by selective evaporation and condensation Ball and tube collecting black yuck

Question 27

Filtration

Answer 27

Filter paper the action or process of filtering something. "small particles are difficult to remove without filtration"

Question 28

Periodic table

Answer 28

Gets less reactive as go down | | \/

Question 29

Evaporation

Answer 29

Salt crystals left once water evaporates

Question 30

What's in air

Answer 30

Nitrogen - 78% Oxygen - 21% Co2 - 0.04% Argon - 1%

Question 31

Oxidation

Answer 31

When an atom loses an electron

Question 32

Name the iron compound present in rust

Answer 32

Hydrated iron oxide

Question 33

Name the 2 substances iron reacts with when it rusts

Answer 33

Water | Oxygen

Question 34

What type of reaction occurs in the rusting of iron

Answer 34

Oxidation

Question 35

What is the name of the metal that is used in galvanising iron

Answer 35

Zinc

Question 36

Identify and object that is suitable for galvanising

Answer 36

Bucket

Question 37

12 C 6

Answer 37

Top : atomic mass | Bottom: atomic number

Question 38

35.5 Cl 17 Why isn't relative atomic mass a whole number

Answer 38

Due to the presence of isotopes

Question 39

Protons and electrons are

Answer 39

Equal amounts

Question 40

Isotopes of an element are atoms with the same

Answer 40

number of protons but with different number of electrons