FC1 Formulae and equations

Question 1

What are the 3 sub atomic particles

Answer 1

• Electron
• Proton
• Neutron

Question 2

What is the relative mass of an electron

Answer 2

1/2000

Question 3

Where are the protons and neutrons

Answer 3

In the nucleus

Question 4

Where are the electrons organised

Answer 4

In shells

Question 5

Define a compound

Answer 5

A compound comprises more than 1 element chemically bonded together

Question 6

What is a positive ion called

Answer 6

Cation

Question 7

What is a negative ion called

Answer 7

Anion

Question 8

What is the name of the attraction between oppositely charged ions

Answer 8

Electrostatic attraction

Question 9

What is a covalent bond

Answer 9

Is formed when a pair of atoms share a pair of electrons.

Question 10

What holds the atoms together in a covalent bond

Answer 10

The electrostatic attraction between the electron pair (negative) and the nuclei of the 2 atoms (positive)

Question 11

Typically compounds made up only of atoms of non-metals have what type of bonding

Answer 11

Covalent

Question 12

Typically compounds containing both a metal and a non-metal have what type of bonding

Answer 12

Ionic

Question 13

Formula of oxygen

Answer 13

O2

Question 14

Formula of nitrogen

Answer 14

N2

Question 15

Hydrogen

Answer 15

H2

Question 16

Chlorine

Answer 16

Cl2

Question 17

Ammonia

Answer 17

NH3

Question 18

Methane

Answer 18

CH4

Question 19

Carbon dioxide

Answer 19

CO2

Question 20

Hydrochloric acid

Answer 20

HCl

Question 21

Sulfuric acid

Answer 21

H2SO4

Question 22

Nitric acid

Answer 22

HNO3

Question 23

Hydroxide

Answer 23

OH-

Question 24

Carbonate

Answer 24

CO32-

Question 25

Sulfate

Answer 25

SO42-

Question 26

Nitrate

Answer 26

NO3-

Question 27

When writing an ionic equation, what state symbol means you can split into ions

Answer 27

aq

Question 28

What is the name of the ion that you can cancel out in an ionic equation

Answer 28

Spectator