classify as physical and chemical change zn will dilute h2so4
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Answer:
it will be a chemical challenge
Explanation:
after reaction ZnSO4 will be formed and H2 gas released.
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Explanation:
Water-soluble substances dissolve in it and form solutions and can be obtained back by evaporation.
The reaction of zinc metal with dilute sulphuric acid forms zinc sulphate and hydrogen gas.
Hence it is a chemical change.
Similarly, burning of coal produces carbon dioxide and water vapour while during photosynthesis starch and carbon dioxide are formed and so are a chemical change.
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