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AP Chemistry Exam Prep

Category - AP Chemistry

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Which of the following solutions is blue?

.1 M Cu(NO₃)₂
.1 M NaNO₃
.1 M CaCl₂
.1 M KNO₃
.1 M MgCl₂

Explanation

Answer: .1 M Cu(NO₃)₂

Solutions containing copper have a blue coloration. In the context of the question, .1 M Cu(NO₃)₂ is blue.

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