Which of the following changes is correct?
(A) Cooking of food-Exothermic reaction
(B) Digestion of food-Endothermic reaction
(C) Formation of compost-Exothermic
reaction
(D) Burning of magnesium ribbon-
Endothermic reaction
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Answer:
Answer: (4) Decomposition of calcium carbonate to form quick lime and carbon dioxide
Endothermic reactions are chemical reactions wherein heat energy from the environment is absorbed by the reactants to form products. The temperature of their surrounding region is lowered by these reactions, causing a cooling effect. In general, endothermic reactions include the formation of chemical bonds by heat absorption from the atmosphere.
Decomposition of Calcium Carbonate is an example of thermal decomposition and endothermic reaction.
CaCO3 → CaO + CO2
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Answer:
your answer is (D).
Explanation:
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