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Why all the chemical equations must bala...

Why all the chemical equations must balance ?

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Assertion (A) : All the chemical equations must be balanced. Reason (R) : Atoms are either created or destroyed in chemical reaction.

What is balanced chemical equation? Why should chemical equations be balanced?

Translate the following statements into chemical equations and then balance them.

(A) The rate law of a reaction cannot be predicted from its balanced chemical equation, but must be determined experimentally only. (R ) The order of a reaction is always an integer like, 0,1,2 and 3 .

Mention the physical states of thew reactants and products of the following chemical reactions and balance the equations: Na + H_2O to NaOH + H_2

Mention the physical states of the reactants and products of the following chemical reactions and balance the equations: NH_3+Cl_2 to N_2+NH_4CI^((S))

Why should we balance a chemical equation? Take any one chemical equation and explain the procedure of balancing it.

A balanced chemical equation is appreciable because, it gives

a) Write a chemical equation for formation of water. b) Balance the chemical equation by a systematic method.

BEYOND PUBLICATION-CHEMICAL EQUATIONS-EXERCISE
  1. Why all the chemical equations must balance ?

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  2. Which of the following is correct ?

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  3. Downward arrow in chemical equation indicates-

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  4. The colour of the precipitate of lead iodide is-

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  5. which of the following is a skeleton reaction?

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  6. CaO reacts with water to form……….

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  7. Ammonia is formed by the reaction of gases…………

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  8. A solution of potassium iodide reacts with lead nitrate to give…..

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  9. When a smal piece of zinc metal is added to a solution of Copper sulph...

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  10. The chemical reaction in which energy is absorbed to form a new compou...

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

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

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

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

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

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

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  17. Pb(NO3)2 +…………….. = PbI2+2KNO3

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  18. NaCl + AgNO3rarr…………..+ NaNO3

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

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

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

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