Question

A. ANSWER THE FOLLOWING QUESTIONS IN ONE WORD
1.In which changes do substances undergo chemical transformation - Physical
or Chemical ?
2. The process of depositing zinc on iron to prevent rusting is called
3.Which gas is given off when calcium carbonate is heated ?
4. When two soluble substances in solution react to give an insoluble substance
is formed.
5. Heat is absorbed in an
reaction
6. If an equation has '+' heat written on its right -hand side , what type
of
a
reaction is it?
7. What method will you use to get a pure liquid if it has dissolved impurities
present in it?
8. Salt is obtained from sea water by crystallization. True or false

Answer 1

Answer:

1 chemical change 2 Galvanization 3carbon dioxide 4 no idea 5Endothermic reactions 6 no idea 7 distillation 8 true but when we obtained salt by crystallization it is not pure

Large crystals of pure substances can be formed from their solutions.

Explanation:

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