Iron and Sulphur; as a mixture and compound 9 set 4

Iron filings contain iron atoms, iron is an

• element

• mixture

• compound

• atom

Sulfur powder contain sulfur atoms, sulfur is an

• element

• mixture

• compound

• atom

When iron filings and sulphur powder is stirred by using a glass rod, it becomes a .....................

• element

• mixture

• compound

• atom

How would you separate iron from a mixture of iron and sulphur?

• By adding water to the mixture

• Use a bar magnet

• By centrifugation

• By heating

When a mixture of iron filings and sulphur is strongly heated in a china dish, what is the color of the product obtained?

• grey

• orange

• black

• pale yellow

What did you observe when the compound FeS is heated?

• a black mass obtained

• no change occurred

• a yellow mass obtained

• a white mass obtained

This picture represents which of the following?

• element
• compound
• mixture
• atom

This picture represents which of the following?

• element
• compound
• mixture
• atom

This picture represents which of the following?

• element
• compound
• mixture
• atom

When one or more substance is combined CHEMICALLY it is called __________________.

• compound

• element

• mixture

• solution