Chemistry - Chemical changes

Reactivity series

Potassium

sodium

calcium

magnesium

aluminium

carbon

zinc

iron

tin

lead

hydrogen

copper

silver

gold

Which elements in the reactivity series react with oxygen?

everyone except gold

Reaction with water (K - Ca)

fizz, give off hydrogen gas and leave behind an alkaline solution of metal hydroxide

Reaction with water (Mg - Fe)

very slow reaction

Reaction with water (Sn and Pb)

slight reaction with steam

Reaction with water (Cu - Au)

no reaction even with steam

Reaction with dilute acid (K - Li)

explodes

Reaction with dilute acid (Ca - Fe)

fizzing, giving off hydrogen gas and forming a salt

Reaction with dilute acid (Sn and Pb)

reacts slowly with warm acid

Reaction with dilute acid (Cu - Au)

no reaction

displacement reactions

When a more reactive metal displaces a less reactive metal from its compound.

oxidation

Loss of electrons/gain of oxygen

reduction

gain of electrons/loss of oxygen

redox reactions

When there is a transfer of one or more electrons from one reactant to another.

how are metals above carbon extracted?

Electrolysis

How are metals below carbon extracted?

Reduction using carbon