Topic 4 - REACTIVITY Flashcards
What is the reactivity series in order
Potassium Sodium Lithium Calcium Magnesium Aluminium CARBON Zinc Iron HYDROGEN Copper Silver Gold
Which metals in the reactivity series react with COLD WATER?
Potassium
Sodium
Lithium
Calcium
Which metals in the reactivity series react with STEAM?
Magnesium Aluminium Carbon Zinc Iron
Which metals in the reactivity series react with ACIDS
Potassium Sodium Lithium Calcium Magnesium Aluminium Carbon Zinc Iron
Which metals in the reactivity series DONT REACT WITH COLD WATER, STEAM NOR ACIDS?
Hydrogen
Copper
Silver
Gold
Why do metals at the top of the reactivity series reat more VIGOROUSLY with water + dilute acids?
THEY ARE MORE REACTIVE
Why do metals at the bottom of the reactivity series reat more slower/dont react with water + dilute acids?
THEY ARE LESS REACTIVE
How does the reactivity change in along the reactivity series?
Reactivity of metals increases UP reactivity series (metal will displace another below it in the R.S)
How can metal oxides be reduced?
By heating it with a metal (REDUCING AGENT) that is HIGHER in reactivity series.
What is a metal oxide?
A compound of metal + oxygen
What is reduction?
When O2 is removed from metal oxide
What is a reducing agent?
Substance that carries out reduction
How could copper (II) oxide be reduced?
By heating it with Magnesium
(Mg is above Cu in R.S so is more reactive + displaces the copper)
CuO + Mg —> MgO + Cu
-REDUCING AGENT= MAGNESIUM
How can a metal be separated from a solution of one of its salts?
Any metal will displace another below it in the R.S from a solution of its salt.
How could Zinc displace Copper from Copper (II) Sulphate solution?
Zinc is above Copper in R.S (MORE REACTIVE) so can displace copper from COPPER (II) SULPHATE SOLUTION.
- Zn + CuSO4 —> ZnSO4 + Cu
