Chemistry E - Reactions of metals with acids and making salts

Question 1

Metal + Oxygen = ________

Answer 1

Metal Oxide

Question 2

Metal + Water =_____ _________ + ________

Answer 2

Metal hydroxide + hydrogen

Question 3

Metal + Acid = ____ + ________

Answer 3

Salt + Hydrogen

Question 4

Displacement Reaction

Answer 4

When a more reactive metal displaces a less reactive metal from an aqueous solution of one of its salts

Iron + Silver Nitrate —> Iron Nitrate + Silver

Question 5

Oxidation and Reduction

Answer 5

Oxidation is loss of electrons

Reduction is gain of electrons

Question 6

Redox reaction

Answer 6

A reaction where oxidation and reduction both appear.

iron oxide + carbon —> iron + carbon dioxide

Question 7

Phytomining

Answer 7

Plants grown on land containing metal compound stored in tissues.
Plants harvested / burned.
Ash contains high concentration of metal compound.

Question 8

Bleaching

Answer 8

Bacteria mixed with metal ore.
Chemical reactions lead to leachate.
Leachate contains metal compound.

Question 9

Base

Answer 9

A base is a substance that neutralises an acid

Question 10

6 Marker - Making salts by a metal carbonate

Answer 10

1 . Add sulphuric acid to a beaker

2. Add copper carbonate to sulphuric acid to beaker and stir
3. Keep adding CC until it no longer dissolves
4. Use filter paper and funnel to remove excess CC by filtration
5. Pour into evaporating basin and put over a Bunsen burner
6. Leave to crystallise