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प्रश्न
Define: Endothermic reaction
उत्तर
The reactions in which heat is absorbed are called endothermic reactions. The reactants absorb heat for form products.
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संबंधित प्रश्न
Balance the chemical equation.
\[\ce{HNO3 +Ca(OH)2 -> Ca(NO3)2 + H2O}\]
Translate the following statement into chemical equation and then balance the equation:
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Balance the following equation:
Na + O2 
Na2O
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H2O2 
H2O + O2
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Is Photosynthesis an endothermic reaction or an exothermic reaction?
When water is added gradually to a white solid X, a hissing sound is heard and a lot of heat is produced forming a product Y. A suspension of Y in water is applied to the walls of a house during white washing. A clear solution of Y is also used for testing carbon dioxide gas in the laboratory.
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(b) What could be product Y? Write its chemical formula.
(c) What is the common name of the solution of Y which is used for testing carbon dioxide gas?
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\[\ce{Zn + HCl -> ZnCl2 + H2}\]
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Balanced equation
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Balance the following equation:
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Write the balanced chemical equation of the following reaction.
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\[\ce{ZnCo3->[\triangle] ZnO + CO2}\]
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C + O2 → CO
Balance the following simple equation:
CO2 + C → CO
Balance the following simple equation:
Zn + HCl → ZnCl2 + H2
Balance the following simple equation:
NaOH + Cl2 → NaCl + NaClO + H2O
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- sublimation of silver chloride
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- CO2
- SO2
- O2
- H2
Complete the following blank in the equation as indicated.
\[\ce{CaH2_{(s)} + 2H2O_{( aq)}-> Ca(OH)2_{(s)} + 2H2_{(g)}}\]
Molecules: 6.02 × 1023 + ______ `→` ______ + ______
