Consider the reaction when aqueous solutions of chromium(III) nitrate and calcium bromide are combined. specify states such as (aq) or (s).?
回答 (1)
2016-05-31 1:44 am
Chromium(III) nitrate solution contains Cr³⁺ and NO₃⁻ ions.
Calcium bromide solution contains Ca²⁺ and Br⁻ ions.
CrBr₃ is insoluble in water, while Ca(NO₃)₂ is soluble.
Hence, CrBr₃ precipitate is formed.
Full equation : 2Cr(NO₃)₃(aq) + 3CaBr₂(aq) → 2CrBr₃(s) + 3Ca(NO₃)₂(aq)
Net ionic equation : Cr³⁺(aq) + 3Br⁻(aq) →CrBr₃(s)
Calcium bromide solution contains Ca²⁺ and Br⁻ ions.
CrBr₃ is insoluble in water, while Ca(NO₃)₂ is soluble.
Hence, CrBr₃ precipitate is formed.
Full equation : 2Cr(NO₃)₃(aq) + 3CaBr₂(aq) → 2CrBr₃(s) + 3Ca(NO₃)₂(aq)
Net ionic equation : Cr³⁺(aq) + 3Br⁻(aq) →CrBr₃(s)
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