Remember this. 1st half term

Question 1

Sulfuric Acid?

Answer 1

H2SO4

Question 2

Hydrochloric Acid?

Answer 2

HCl

Question 3

Methane?

Answer 3

CH4

Question 4

Ammonia?

Answer 4

NH3

Question 5

Carbon Dioxide?

Answer 5

CO2

Question 6

Nitric Acid?

Answer 6

HNO3

Question 7

Ionic bonding is between …… and ……..

Answer 7

Metals and non-metals

Question 8

Covalent bonding is between …… and …..

Answer 8

Two non-metals

Question 9

Metallic bonding is between …. and ……

Answer 9

Two metals.

Question 10

Name the diatomic molecules?

Answer 10

Hydrogen (H2) Oxygen, Chlorine, Fluroine, Bromine, Iodine, Nitrogen

Question 11

What is the formula for % mass of a compound?

Answer 11

Ar x no. of atoms in element / Mr of the compound

Question 12

How to calculate the Mr?

Answer 12

Add all relative atomic masses together.

Question 13

Give the two equations for moles?

Answer 13

Moles= conc x volume
Mols = mass/Mr

Question 14

At 20 degrees c (room temp and pressure 1atm) what volume does 1mol of gas take up?

Answer 14

24dm”3

Question 15

How to find Atom economy?

Answer 15

Mr of desired products/ Mr of all reactants

Question 16

How to find percentage yield?

Answer 16

mass of product actually made/ maximum theoretical mass x 100

Question 17

What statement describes a Homologous series?

All compounds in the family have the same….

Answer 17

All compounds in the family have the same FUNCTIONAL GROUP.

Question 18

Which 2 gases make up the air and what % of air is made up of them?

Answer 18

Nitrogen = 80%
Oxygen= 20%

Question 19

What substance turns white copper sulphate blue?

Answer 19

Water