Equations

Question 0

Metal + steam=

Answer 0

Metal oxide + hydrogen

Question 1

Metal + non metal=

Answer 1

Ionic compound eg metal oxide/chloride

Question 2

Metal + water=

Answer 2

Metal hydroxide + hydrogen

Question 3

Metal + acid=

Answer 3

Metal salt+ hydrogen

Question 4

Mass=

Answer 4

Number of moles # MR mass

Question 5

Number of moles=

Answer 5

Concentration # volume

Question 6

Volume =

Answer 6

Moles # 24

Question 7

3 properties of molecular solids

Answer 7

Low melting point- weak intermolecular forces
Can’t conduct electricity
Soft and brittle

Question 8

Name of giant structure of molecules

Answer 8

Lattice

Question 9

What is sand made of?

Answer 9

Silicon and oxygen

Question 10

How many oxygen attach to the silicon in sand?

Answer 10

4

Question 11

What are different forms of the same element called?

Answer 11

Allotropes

Question 12

3 features of diamond?

Answer 12

Very hard
Very high melting/ boiling point
Can’t conduct electricity

Question 13

In diamond how many carbons are bonded together?

Answer 13

4

Question 14

2 features of graphite

Answer 14

Soft and slippery- weak attraction forces are easily broken. Used as lubricant.
Conducts electricity- free electrons from each carbon mean each layer has delocalised electrons- carry a charge.

Question 15

What does a giant ionic lattice structure look like?

Answer 15

Metal and nonmetal close together in cube.

Question 16

2 features of ionic lattice structure

Answer 16

Melting/ boiling point high

Soluble in water

Question 17

What does a giant metallic lattice look like?

Answer 17

Large positive protons, small electrons on the right

Question 18

2 features of metallic lattice

Answer 18

High mpt/bpt

Conducts electricity because of free moving electrons.