Exam Qs Flashcards
1
Q
This question is about salts. Green copper carbonate and sulfuric acid can be used to produce blue copper sulphate crystals. Excess copper carbonate is added to the sulfuric acid.
Give three observations you would make.
A
1. Effervescence due to gas as CO2 is released
2. The colour change from green to blue as copper carbonate reacts with sulfuric acid to form copper sulphate
3. The formation of blue copper sulphate crystals as the solution cools and evaporates
