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Home > Science > Chemical and material behaviour > Compounds and mixtures

Compounds and mixtures - Test

1.

How many different atoms are there in a compound?

2.

Does this show an element, a mixture or a compound?

small circles are joined in pairs

3.

Which statement about atoms and molecules is correct?

4.

Is water an element, compound or mixture?

5.

Which is the best way to get salt from salty water?

6.

Pure water can be separated from inky water by simple distillation. This is because:

7.

What is the correct order for obtaining salt from a mixture of sand and salt?

8.

Which method is usually used to separate coloured substances from each other?

9.

Which of these three metals is the most reactive: potassium, iron or gold?

10.

Which of these three metals is the least reactive: iron, copper or platinum?

11.

Copper and oxygen react to form which compound?