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Give an example of exothermic reaction....

Give an example of exothermic reaction.

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`CH_(4)(g) + 2O_(2)(g) to CO_(2)(g) + 2H_(2)O(g) + "heat. (evolved)"`
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Give an example of endothermic reaction.

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In exothermic reaction

(a) What do you understned 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",,):}

Give an example of photochemical reaction.

DINESH PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS -Very Short Answer Questions
  1. Why are eatables preferably packed in aluminium foils ?

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  2. What happens chemically when quick lime is added to water ?

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  3. Give an example of exothermic reaction.

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  4. Give an example of endothermic reaction.

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  5. Name the gas that can be used for the storage of fresh sample of chips...

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  6. Name the type of reaction N(2)(g) + 3H(2)(g) to 2NH(3)(g)

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  7. Give an example of a double displacement reaction (only) reaction with...

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  8. In the reaction MnO(2) + 4HCl to MnCl(2) + 2H(2)O + Cl(2), identify wh...

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  9. Name two salts that are used in black and white photography.

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  10. State the chemical change that takes place when lime stone is heated

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  11. Write a balanced equation for a chemical reaction that can be characte...

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  12. Name the law which requires the balancing of chemical equation.

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  13. What is meant by thermal decomposition reaction ? Explain with an exam...

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  14. {:(X + Y SO(4) to X SO(4) + Y),(Y + X SO(4) to "No reaction"):} Of t...

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  15. Write a complete balanced chemical equation for the following reaction...

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  16. On heating copper powder in air, the surface of copper powder becomes ...

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  17. Write the essential condition for the following reaction to take place...

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  18. Write the chemical formula of rust.

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  19. Give an example of photochemical reaction.

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  20. What is combination reaction ? Give an example.

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