Quiz
Quiz on Atoms, Elements, Compounds and Mixtures
Perguntas do quiz (7)
1Tick the boxes by the chemical changes.
- Aboiling water in an electric kettle
- Bburning petrol in a car engine
- Cdiluting orange juice with water
- Dmaking aluminium cans from a block of aluminium metal
2John 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.
- AAdd water so the crystals dissolve, sweep up the glass and mop up the water.
- BSweep up the mixture and put in bin.
- CAdd acid so the mixture dissolves and mop it up.
3Marie 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?
- ACheck if the beads are sonorous and carbon.
- BCheck if the beads are sonorous and magnesium.
- CSee if they conduct heat or electricity and magnesium.
- DSee if they conduct heat or electricity and lead.
4In Marie's experiment, where, apart from the air, did oxygen come from?
- AThe Bunsen Burner
- BThe lead oxide.
5What is the name of the compound made when magnesium reacts with sulphur?
- Amagnesium sulphate
- Bmagnesium oxide
- Cmagnesium sulphide
- Dmagnesium oxate
6What is the process in which you break down a substance using heat?
- Areduction
- Boxidation
- Cthermal decomposition
- Dcombustion
7Select the word equation for the reaction between magnesium and oxygen.
- Amagnesium + crucible = magnesium oxide
- Bmagnesium + oxygen = magnesium oxidate
- Cmagnesium + oxygen = magnesium oxide
Informações
- Descrição
- a quiz on atoms, elements, compounds and mixtures
- Autor
- ellamay947
- Idioma
- English
- Visualizações
- 307
- Etiquetas
- Avaliação
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