C5. Chemical Changes Flashcards
1
Q
What is the reactivity series?
A
Metals can be placed in order of reactivity by their reactions with water and dilute acids
2
Q
What is oxidisation and reduction?
A
Oxidisation is adding oxygen, loss of electrons
Reduction is having oxygen removed, gain of electrons (usually removing metal from rock)
3
Q
Reactivity series order
A
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
4
Q
Equation for salts from metals
A
Acid + metal -> a salt + hydrogen
