Chemistry 0620 · IGCSE · Physical and chemical changes

Physical and chemical changes — practice question

A Bunsen burner is used to heat three metal compounds, J, K and L. The outcomes are shown. Which row correctly identifies J, K and L?

  • AJ: magnesium carbonate; K: potassium carbonate; L: potassium nitrate
  • BJ: magnesium carbonate; K: potassium nitrate; L: potassium carbonate
  • CJ: potassium nitrate; K: magnesium carbonate; L: potassium carbonate
  • DJ: potassium nitrate; K: potassium carbonate; L: magnesium carbonate

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