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

`Zn+2HCl rarr ZnCl_(2)+H_(2)` is an example for ……………….

A

Chemical combination

B

Chemical decomposition

C

Chemical displacement

D

Chemical double displacement

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BEYOND PUBLICATION-CHEMICAL EQUATIONS-EXERCISE
  1. In exothermic reaction heat energy is-

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

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

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

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

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

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

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

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  9. Why should we balance a chemical equation?

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  10. What is a chemical equation?

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  11. By a balanced chemical equation, what do we know about atoms ?

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  12. How many steps are there in balancing the equation ?

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  13. Is there any imp0rtance of molecular formulae in writing the equation ...

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  14. How do the co-efficients of the substances would be, while balancing t...

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  15. Can we change the ratio of atoms in the molecules of the substances wh...

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  16. Sitara told that a chemical reaction occurs in ripening of grapes. Is ...

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  17. X - Y leftarrow Z. Raja wrote a chemical equation like so ? What are t...

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  18. Zn + HCl rarr ZnCl2 + H2.Is it a balanced equation ? Give the reason.

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  19. Rupa says "xx+ y rarr xxy +Q indicates an endothermic reaction". Can y...

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  20. 4 Agcl rarr 4 Ag + 2 Cl2. Is it a balanced equation ? Yet it is not in...

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