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A chemical equation should be balanced ...

A chemical equation should be balanced because the law……. Should be verified.

A

constant proportions

B

conservation of mass

C

law of equality

D

law of balance

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BEYOND PUBLICATION-CHEMICAL EQUATIONS-EXERCISE
  1. The chemical reaction in which energy is absorbed to form a new compou...

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

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  3. A chemical equation should be balanced because the law……. Should be v...

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  4. C+O2toCO2+Q. This is reaction.

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  5. Ca(OH)2+CO2toCaCO3+H2O. In this reaction shiny finish to walls is due ...

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  6. Fe2O3 + 2Al -rarr Al2O3 + 2Fe. ఈ చర్య దేనికి ఉదాహరణ?

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  7. Fill in the blanks: C6H12O6+6O2 to......+6H2O+Q

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  8. Pb(NO3)2 +…………….. = PbI2+2KNO3

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  9. NaCl + AgNO3rarr…………..+ NaNO3

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  10. Fill in the blanks: Na2SO4+...... to BaSO4 +2NaCl

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  11. Balance the following chemical equations. i) Zn((s))+AgNO(3(aq))rarr...

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  12. If some amount of energy is released in a chemical reaction, then it i...

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  13. Colour of silvr bromide is……..

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  14. Cl2 + H2Orarr………+ HCl

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  15. Precipitate in a reaction is indicated by which arrow mark ?

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

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

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  18. Identify the exothermic reaction among the following-

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  19. Atomic mass of oxygen-

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

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