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Question
What happens when calcium reacts with chlorine? Write an equation for the reaction which takes place.
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Solution
Calcium is a metal that reacts vigorously with chlorine to form the ionic compound calcium chloride.
\[\ce{\underset{Calcium}{Ca_{(s)}} + \underset{Chlorine}{Cl2_{(g)}} -> \underset{Calcium chloride}{CaCl2_{(s)}}}\]
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