Stuff

Question 1

Sulfate

Answer 1

SO4 ^2-

Question 2

Nitrate

Answer 2

NO3^-

Question 3

Carbonate

Answer 3

CO3^2-

Question 4

Hydroxide

Answer 4

OH-

Question 5

Ammonium

Answer 5

NH4^+

Question 6

Calculate percentage mass of element in compound

Answer 6

(Relative mass of element / Mr of compound) x 100

Question 7

Define empiracle formula

Answer 7

Simplest ratio of atoms

Question 8

Structure and properties of ionic compound

Answer 8

Structure - giant ionic lattice
Properties high melting and boiling
Only conduct when molten or dissolved - ions free to move

Question 9

Simple covalent structure and properties

Answer 9

Structure - covalent bonding
Properties - low melting and boiling
Do not conduct

Question 10

Structure of giant covalent

Answer 10

Structure - giant covalent
High melting and boiling
Doesn’t conduct
Don’t dissolve

Question 11

Properties of diamond

Answer 11

4 carbon bonds

Hard

Question 12

Properties of graphite

Answer 12

Sheets - moves can conduct
Carbon makes 3 bonds
Soft
Graphene is one sheet

Question 13

Fullerenes properties

Answer 13

3 carbon bonds
Hard
Drug delivery
Lubricant

Question 14

Test for hydrogen
Oxygen
CO2
CHLROINE

Answer 14

hydrogen squeaky pop
Oxygen relight glowing splint
CO2 turns limewater cloudy
CHLROINE bleaches damp litmus paper