Starter quiz

  • Which of the following are compounds?
    • O₂
    • NaCl  ✓
    • Potassium
    • Water  ✓
    • Silicon dioxide  ✓
  • 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
  • What is the term for a substance that does not dissolve in water?
    • Soluble
    • Insoluble  ✓
    • Miscible
    • Desirable
    • Unchangeable
  • Name this chemical: MgO
    • magnesium oxygen
    • magnesium oxide  ✓
    • oxomagnesia
    • oxymagnesium
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