C5. Chemical Changes

Question 1

What is the reactivity series?

Answer 1

Metals can be placed in order of reactivity by their reactions with water and dilute acids

Question 2

What is oxidisation and reduction?

Answer 2

Oxidisation is adding oxygen, loss of electrons

Reduction is having oxygen removed, gain of electrons (usually removing metal from rock)

Question 3

Reactivity series order

Answer 3

Please ~ potassium 
Send ~ sodim
Little ~ lithium
Charlies ~ calcium
Monkeys ~ magnesium
And ~ aluminium 
Cute ~ carbon
Zebras ~ zinc
In ~ iron
Tough ~ tin
Large ~ lead
Huge ~ hydrogen
Cages ~ copper
Securely ~ silver 
Guarded ~ gold
Protection ~ platinum

Question 4

Equation for salts from metals

Answer 4

Acid + metal -> a salt + hydrogen