The question asks: "Write reactions to show dissociation into ions of the following substances when they dissolve in water: a) sodium carbonate b) magnesium chloride c) ammonium hydroxide"
So do I just write the chemical equation for sodium carbonate and water? Magnesium and water? and ammonium hydroxide and water?
So do I just write the chemical equation for sodium carbonate and water? Magnesium and water? and ammonium hydroxide and water?
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No! You only need to show into which ions the original compound breaks up into!
For example, take Na2CO3 this breaks up as
Na2CO3 ------> 2Na^+ + CO3^2-
For example, take Na2CO3 this breaks up as
Na2CO3 ------> 2Na^+ + CO3^2-
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Include the state symbols:
Na2CO3(s) ------> 2Na^+(aq) + CO3^2-(aq)
Na2CO3(s) ------> 2Na^+(aq) + CO3^2-(aq)