Answer:
Single replacement and Zinc Sulfate
the 2nd one is double replacement and potassium nitrate
Heat the sulfuric acid solution and adding copper carbonate in it.
<h3>Improvement require in this experiment</h3>
The method could be improved by heating sulfuric acid solution and add copper carbonate into the solution of sulfuric acid. Add the copper carbonate until it is present in excess amount. After that filter the extra amount of copper carbonate so in this way the blue copper sulfate crystals are produced.
Learn more about copper here: brainly.com/question/3157958
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Plasmolysed because of osmosis as the salt solution has lower water potential than the cells of the stalk
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