Chemistry 5070 · O Level · Elements, compounds and mixtures

Elements, compounds and mixtures — practice question

Which of the following statements is correct?

  • ABoth physical changes and chemical changes produce new substances.
  • BChemical changes are irreversible.
  • CDuring a chemical change, atoms rearrange themselves to form new chemical bonds.
  • DThe only way to reverse a physical change is with a chemical reaction.

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