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What are thermochemical reactions ? Give...

What are thermochemical reactions ? Give two examples.

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A chemical equation which gives the information about the energy changes occurring during the chemical reaction is called a thermochemical equation.
`2H_(2)(g)+O_(2)(g)to2H_(2)(l)+571.6kJ`.
`N_(2)(g)+3H_(2)(g)to2NH_(3)(g)+92kJ`.
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ZEN PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS-ZEN ADDITIONAL QUESTIONS SECTION (SHORT ANSWER [SA] TYPE 2 QUESTIONS )
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  2. Balance the following chemical equations : NH(3)+CuO to Cu+N(2)+H(2)...

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  3. What are thermochemical reactions ? Give two examples.

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  5. Classify the following reactions as exothermic or endothermic. (i) e...

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  6. 2g of ferrous sulphate crystals are heated in a dry tude. List any t...

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  7. 2g of ferrous sulphate crystals are heated in a dry tude. Name the t...

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  8. 2g of ferrous sulphate crystals are heated in a dry tude. Name the t...

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  9. Discuss the importance of decomposition reaction in metal industry wit...

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  10. On passing excess carbon dioxide gas through lime water, it first turn...

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  12. Write the chemical equation for reaction when lead nitrate and potassi...

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  13. A student has mixed the solution of lead (II) nitrate and potassium io...

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  14. A student has mixed the solution of lead (II) nitrate and potassium io...

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  15. A brown substance 'X' on heating in air forms a substance 'Y'. When hy...

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  16. A brown substance 'X' on heating in air forms a substance 'Y'. When hy...

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  17. A brown substance 'X' on heating in air forms a substance 'Y'. When hy...

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  18. Give three ways of preventing rusting of iron.

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  20. What is meant by rancidity ? State any two methods to prevent it.

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