WJEC Acids and Bases 2

Copper oxide + hydrochloric acid --->

• Copper hydroxide

• Copper chloride

• Sodium chloride

• Copper carbonate

Sodium carbonate + sulphuric acid --->

• Sodium chloride

• Copper sulphate

• Sodium sulphate

• sodium carbonate

Iron oxide + nitric acid --->

• Iron oxide

• Rust

• Iron nitrate

• iron sulphate

Blue solution A is...

• Copper carbonate

• Hydrochloric acid

• Copper sulphate

• Copper chloride

Gas B is...

• Hydrogen

• Carbon dioxide

• Oxygen

• Air

Alkali C is...

• Sodium chloride

• Sodium hydroxide

• Copper carbonate

• Sodium alkali

Gas A is...

• Hydrogen

• Oxygen

• Carbon dioxide

• Air

Blue solution B is...

• Hydrogen

• Copper chloride

• Copper nitrate

• Copper sulphate

Powder C is...

• Copper carbonate

• Copper chloride

• Copper nitrate

• Copper sulphate

Gas D is...

• Hydrogen

• Carbon Dioxide

• Oxygen

• Air