Starter quiz
- Which of the following are compounds?
- O₂
- NaCl ✓
- Potassium
- Water ✓
- Silicon dioxide ✓
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- In a chemical reaction, what are the substances called that start the reaction?
- 'reactants' ✓
- True or false?: A physical change alters the chemical composition of the substance.
- True
- False ✓
- Which of the following statements best describes a chemical change?
- Ice melting into water
- Water boiling into steam
- Paper burning into ash ✓
- Sugar dissolving in water
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- What is the term for a substance that does not dissolve in water?
- Soluble
- Insoluble ✓
- Miscible
- Desirable
- Unchangeable
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- Name this chemical: MgO
- magnesium oxygen
- magnesium oxide ✓
- oxomagnesia
- oxymagnesium
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