When sodium hydroxide solution is added to copper sulfate solution, a blue precipitate of copper hydroxide is formed along with sodium sulfate solution. What kind of chemical reaction takes place between them?
Chemical combination reaction
Chemical double decomposition reaction
Chemical decomposition reaction
Chemical displacement reaction
A
Chemical combination reaction
B
Chemical displacement reaction
C
Chemical double decomposition reaction
D
Chemical decomposition reaction
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Solution
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Copper sulfate solution reacts with sodium hydroxide solution to form a precipitate of copper hydroxide.
According to the equation:
2NaOH+CuSO4→Na2SO4+Cu(OH)2↓
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