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Answer:
Q6)a) 298K b) 646K
Q7) I) Burning of candle
ii) Digestion of food
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Answer:
Q6) t K = t°C +273
(a) 25°C + 273
= 298K
(b) 343°C + 273
= 646K
Q7)Examples of Chemical Change
- Burning of paper
- Digestion of food
- Growth
- Curdling of milk
Q8)
(a) Chemical formula of Aluminium sulphate
- Al2(SO4)3
(b) Chemical name of CaCO3 - Calcium carbonate
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