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What is Copper Sulphate Color Change Explained about?
The document discusses chemical reactions and equations from a 10th grade chemistry textbook. It provides answers to three questions: 1) When an iron nail is placed in copper sulfate solution, iron displaces the copper which causes the blue solution to turn green as iron sulfate forms. 2) Sodium carbonate and calcium chloride undergo a double displacement reaction forming calcium carbonate and sodium chloride. 3) In the reactions 4Na + O2 → 2Na2O, sodium is oxidized and oxygen is reduced. In the reaction
- Author
- apfc epfo
- Language
- EN