Chemistry, asked by ariandalexi, 11 months ago

Why is solid copper II oxide basic but does not turn litmus paper to blue .

Answers

Answered by karkalacharitha

Answer:

solid copper (2)oxide is a base but the no presence of water in it it does not change its colour.

Answered by raunakagarwalasn

Answer:

Copper sulfate dissociates into copper and sulfate ions in water. The self-ionisation reaction is in equilibrium (at a constant temperature). The sulfate ions are unreactive in water (observed when sulfuric acid ionises in water and ionises almost completely leaving sulfate ions dissolved in water). The copper ions do react with water (observed when copper hydroxide is dissolved in water and very little dissociates). This reaction results in a surplus of hydrogen (or hydronium) ions i.e. creating an acidic solution. Finally, acid solutions turn blue litmus paper red.

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