pls answer this question
Answers
Answer:
a. boiling of water
b.simple distillation
c.ans c is correct
Answer:
15. (a) Burning of a candle
16. (a) Crystallization
17.(b) Both are chemical processes.
Explanation:
15. When a candle burns, the wax melts, which is a physical change, but the wick of the candle is burning and changing so it's a chemical change. Thus, the answer is (a)
16. Crystallization allows you to separate a pure solid from its aqueous super saturated solution. Thus, (a) is again correct.
17. Cooking of food is a chemical process, since the food is roasted and burnt and is irreversible. Similarly, digestion is also a chemical process because Tripsin and Pepsin convert proteins into Amino acids and Lipase converts Fats to fatty acids. This is also irreversible. Thus, the correct answer is (b).
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Lilac584