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Endothermic and Exothermic Reaction

Burning of ma...

Question

Burning of magnesium ribbon is exothermic or endothermic reaction?

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Solution

Burning of magnesium ribbon is exothermic process because when it burns it gives out a huge amount of energy .

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Q. Choose the correct option:
Statement 1: Burning of magnesium ribbon is an exothermic reaction.
Statement 2: Decomposition of potassium nitrate is an endothermic reaction.

Q. Magnesium is heated in flame for sometime before it catches fire and burns to form magnesium oxide with the release of large amount of heat and light energy. Is the reaction exothermic or endothermic? Explain your answer.

Q. Which of these changes does a burning matchstick undergo?
(i) Endothermic reaction
(ii) Exothermic reaction
(iii) Chemical change

Q. (a) What do you understand by exothermic and endothermic reactions?
(b) Give one example of an exothermic reaction and one of an endothermic reaction.
(c) Which of the following are endothermic reactions and which are exothermic reactions?
(i) Burning of natural gas
(ii) Photosynthesis
(iii) Electrolysis of water
(iv) Respiration
(v) Decomposition of calcium carbonate

Q. Combustion is the process of burning a fuel, is ___________ .

(A) an oxidation and an exothermic reaction.
(B) a reduction and an endothermic reaction.

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