ellamay947
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a quiz on atoms, elements, compounds and mixtures

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ellamay947
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Quiz on Atoms, Elements, Compounds and Mixtures

Quiz on Atoms, Elements, Compounds and Mixtures

Question 1 of 7

1

Tick the boxes by the chemical changes.

Select one of the following:

  • boiling water in an electric kettle

  • burning petrol in a car engine

  • diluting orange juice with water

  • making aluminium cans from a block of aluminium metal

Explanation

Question 2 of 7

1

John dropped a glass bottle of blue copper sulphate crystals. The bottle broke and the glass mixed with the crystals. Suggest how John or a teacher could clear up the mixture safely, without cutting themselves.

Select one of the following:

  • Add water so the crystals dissolve, sweep up the glass and mop up the water.

  • Sweep up the mixture and put in bin.

  • Add acid so the mixture dissolves and mop it up.

Explanation

Question 3 of 7

1

Marie mixed 5g of carbon with 5g of lead oxide. She heated the mixture strongly for 15 minutes in a fume cupboard. After 15 minutes, Marie found some shiny beads in the mixture. How should Marie test to see if the beads are metal and if they are metal, what metal are they most likely to be?

Select one of the following:

  • Check if the beads are sonorous and carbon.

  • Check if the beads are sonorous and magnesium.

  • See if they conduct heat or electricity and magnesium.

  • See if they conduct heat or electricity and lead.

Explanation

Question 4 of 7

1

In Marie's experiment, where, apart from the air, did oxygen come from?

Select one of the following:

  • The Bunsen Burner

  • The lead oxide.

Explanation

Question 5 of 7

1

What is the name of the compound made when magnesium reacts with sulphur?

Select one of the following:

  • magnesium sulphate

  • magnesium oxide

  • magnesium sulphide

  • magnesium oxate

Explanation

Question 6 of 7

1

What is the process in which you break down a substance using heat?

Select one of the following:

  • reduction

  • oxidation

  • thermal decomposition

  • combustion

Explanation

Question 7 of 7

1

Select the word equation for the reaction between magnesium and oxygen.

Select one of the following:

  • magnesium + crucible = magnesium oxide

  • magnesium + oxygen = magnesium oxidate

  • magnesium + oxygen = magnesium oxide

Explanation

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