General

Question 1

REACTIVITY SERIES

Answer 1

Please - potassium
Send - sodium
Cats - calcium
Monkeys - magnesium
And - aluminium
Cute - carbon
Zebras - zinc
Into - iron
Large - lead
Heavy - hydrogen
Cages - copper
Securely - silver
Guarded - gold

Question 2

Solubility Table (5)

Answer 2

Soluble:
1. ALL GROUP 1, ALL SPA (Sodium, Potassium, Ammonia), ALL NITRATE
2. ALL SULFATES
3. ALL CHLORIDES
4. SPA CARBONATES
5. SPA, BARIUM OXIDE/HYDROXIDE, CALCIUM SPARINGLY SOLUBLE

Insoluble:
1. -
2. SULFATES: BCL (Barium, Calcium, Lead (II))
3. CHLORIDES: SML (Silver, Mercury (I), Lead (II))
4. ALL CARBONATES
5. ALL OXIDES

Question 3

DIATOMIC ELEMENTS
I Have No Bright Or Clever Friends

Answer 3

I - Iodine - I₂
H - Hydrogen - H₂
N - Nitrogen - N₂
Br - Bromine - Br₂
O - Oxygen - O₂
Cl - Chlorine - Cl₂
F - Fluorine - F₂

Question 4

Common Acids & Strengths (6)

hydrochloric, nitric, sulfuric, phosphoric, ethanoic, carbonic

Answer 4

Strong Acids:
1. Hydrochloric acid: HCl
2. Nitric acid: HNO3
3. Sulfuric acid: H2SO4

Weak Acids:
1. Phosphoric acid: H3PO4
2. Ethanoic acid: CH3COOH
3. Carbonic acid: H2CO3

Question 5

Reactions between acids & bases (3 & 2)

Answer 5

ACIDS:
Property 1: Acids + metals -> salt + H2
Property 2: Acids + metal carbonates -> salt + CO2 + H2O
Property 3: Acids + metal oxides / hydroxides -> salt + H2O (neutralisation)
- H+ (aq) + OH- (aq) -> H2O (l)

BASES:
Property 1: Alkalis + acids -> salt + H2O (neutralisation)
- H+ (aq) + OH- (aq) -> H2O (l)

Property 2: Alkalis + ammonium salts -> ∆ (heat is added) salt + H2O + ammonia gas

Question 6

Soluble & Insoluble Gases

NH3, CO2, Cl2, H2, O2, SO2

Answer 6

Soluble: NH3, CO2 (slightly), Cl2, SO2
Insoluble: H2, O2