Question

what does one Mean by exothermic and endothermic reactions? give examples? ​

Answer 1

Answer:

reaction in which heat energy is liberated by the reactants is called exothermic reaction. eg: Carbon + Oxygen gives Carbon Dioxide + Q. reaction in which heat energy is absorbed by the reactants is called endothermic reaction. eg: Nitrogen + Oxygen gives 2 nitrous oxide (2NO) - Q.

Explanation:

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Answer 2

Answer:

exothermic reactions-exothermic reaction is a kind of chemical reaction in which heat is released along with formation of product. this type of chemical reaction is known as exothermic reaction.

for example-calcium oxide + water==} calcium hydroxide +energy

endothermic reaction

endothermic reactions-endothermic reaction is a kind of a chemical reaction in which energy is used in different forms like sunlight, heat, and electricity. for the formation of product is known as endothermic reactions.

for example-calcium carbonate----heating-->calcium oxide + carbon dioxide

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