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In the chemical reaction Fe2O3+2AI overs...

In the chemical reaction `Fe_2O_3+2AI overset(Delta) to 2Fe+ AI_2O_3` the symbol represents

A

compressing

B

heating

C

cooling

D

smelting

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BEYOND PUBLICATION-CHEMICAL EQUATIONS-EXERCISE
  1. Precipitate in a reaction is indicated by which arrow mark ?

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  2. What happens when dil. Hydrochloric acid is added to iron filing ? Cho...

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  3. In the chemical reaction Fe2O3+2AI overset(Delta) to 2Fe+ AI2O3 the sy...

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  4. Identify the exothermic reaction among the following-

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  5. Atomic mass of oxygen-

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  6. Chemical reaction occurs with the ------------- of chemical bonds-

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  7. The metal formed when zinc react with AgNO3 is-

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  8. The substances that are present on left side of a chemical equation ar...

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  9. The formula of hypochlorous acid is-

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  10. Every gas at STP occupies 22.4 litres and it is known as.

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  11. Burning of petroleum gas (LPG) ------- change.

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  12. Identify the balance equations among.

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  13. In exothermic reaction heat energy is-

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  14. The process of preparing slaked lime by adding water to quicklime is t...

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  15. Zn+2HCl rarr ZnCl(2)+H(2) is an example for ……………….

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  16. The correct observation made by the student after putting clean pieces...

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  17. Burning of magnesium crackers is a reaction of …………….

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  18. If the gas liberated in an experiment allows the burning splinter to c...

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  19. Why should we write the arrow tat pointing towards products while ?

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  20. What should we do, if two or more reactants are there writing a chemic...

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