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What does a downward arrow show in a chemical equation?

Answer and explanation

Correct answer: Formation of a precipitate

In a chemical equation, a downward arrow (↓) commonly indicates that an insoluble solid has formed and settled out of a solution. This solid is called a precipitate, so option B is correct. A gas is usually shown by an upward arrow (↑), whereas heat and light are indicated by words or suitable symbols rather than by a downward arrow.

Related tags

Chemical EquationsPrecipitateDownward ArrowChemical ReactionsChemical Reactions And EquationsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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