Question

Please answer these questions fast:
4. Cooking changes __________ properties of food.
5. Reactions in which heat is absorbed are called _________ reactions.
6.In a __________ reaction more reactive metal displaces another less reactive metal from its compound.
7. Crystallization is a _____________ change.
8. Salt is obtained from the sea through _____________.
9. Calcium carbonate when heated gives carbon dioxide and _____________.
10. In a saturated solution no more of _______ can be dissolved.

Answer 1

4 physical

5 endothermic

6 displacement

7 chemical

8 evaporation

9 Oxygen

10 solvent

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