Mixture Vs Compound

Choose the correct examples of mixture

• Salt solution

• Sand and rock

• Iron sulphide

• Lithium hydroxide

• Air

Choose the correct examples of compound

• Iron sulphide

• Water

• Sugar solution

• Oil and water

• Copper oxide

Name the product of the reaction when heating iron and sulphur

• iron oxide

• iron sulphide

• iron hydroxide

• iron and sulphur

Name the product that formed when water react with potassium

• potassium sulphide

• potassium chloride

• potassium hydroxide

• potassium and water

Mixture of iron and sulphur can be separated using magnet.

• Yes

• No

Iron sulphide can be separated using magnet.

• Yes

• No

Compound will have different properties than its original substances that formed it.

• Yes

• No

Water can be separated to oxygen and hydrogen using a method

• using magnet

• electrolysis

• distillation

• filtration

Compound can be separated to its original elements using physical method

• Yes

• No

There are chemical bond formed when you mix salt and water.

• Yes

• No