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प्रश्न
Which among the following change is exothermic or endothermic in nature?
Dissolution of ammonium chloride in water
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उत्तर
Endothermic
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संबंधित प्रश्न
State the information provided by a chemical equation.
Balance the following equation:
\[\ce{P + O2->P2O5}\]
Balance the following equation:
\[\ce{Fe2O3 + H2->Fe + H2O}\]
Balance the following equation:
\[\ce{FeCl3 + NaOH->NaCl + Fe(OH)3}\]
Underline the incorrectly balanced compound equation and rewrite the correct equation.
\[\ce{4P + 4O2->2P2O5}\]
Underline the incorrectly balanced compound equation and rewrite the correct equation.
\[\ce{FeCl3 + 3NH4OH->2NH4Cl + Fe(OH)3}\]
Balance the following important equation:
Al2O3.2H2O + NaOH → NaAlO2 + H2O
Balance the following important equation:
Fe2O3 + Al → Al2O3 + Fe
Balance the following important equation:
Pb(NO3)2 + HCl → PbCl2 + HNO3
Balance the following important equation:
(NH4)2SO4 + NaOH → Na2SO4 + H2O + NH3
Balance the following important equation:
NH4OH + H2SO4 → (NH4)2SO4 + H2O
Balance the following important equation:
S + HNO3 (conc.) → H2SO4 + H2O + NO2
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- Displacement reaction
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- Combination reaction
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Which among the following change is exothermic or endothermic in nature?
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A substance X, which is an oxide of a group 2 element, is used intensively in the cement industry. This element is present in bones also. On treatment with water it forms a solution which turns red litmus blue. Identify X and also write the chemical reactions involved.
Mention any two information conveyed by a balanced chemical equation.
Complete and balance the following equation:
\[\ce{C2H5COONa + NaOH ->[\Delta][CaO]}\]
