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प्रश्न
Which among the following change is exothermic or endothermic in nature?
Dissolution of sodium hydroxide in water
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उत्तर
Exothermic
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संबंधित प्रश्न
Write balanced chemical equations for the following word equation:
Sodium + chlorine → Sodium chloride
Balance the following equation:
`Fe +O_2 → Fe_3 O_4`
Balance the following equation:
`N_2+O_2 → NO`
Balance the following equation:
`Pb_3 O_4 → PbO+O_2`
Balance the following equation. Also name the products formed.
`Mg + O_2 → MgO`
Balance the following equation. Also name the products formed.
`CO + O_2 → CO_2`
Balance the following equation. Also name the products formed.
`N_2 + H_2 → NH_3`
Write your observations and name the product when
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Write a balanced molecular equation for the following word equation:
\[\ce{Zinc + sulphuric acid->Zinc sulphate + hydrogen}\]
Balance the following equation:
\[\ce{Fe + Cl2->FeCl3}\]
Balance the following equation:
\[\ce{NO + O2->NO2}\]
Balance the following important equation:
CuSO4 + NaOH → Na2SO4 + Cu(OH)2
Balance the following important equation:
Fe2O3 + Al → Al2O3 + Fe
Balance the following important equation:
S + H2SO4 (conc.) → SO2 + H2O
The following reaction is used for the preparation of oxygen gas in the laboratory
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Which of the following statement(s) is(are) correct about the reaction ?
Complete the missing component/variable given as x and y in the following reactions
`"CaCO"_2(s)overset(x)(->) "CaO"("s") + "CO"_2("g")`
Complete the co-relation:
CuI2 : Brown : : AgCl : ______
Complete and balance the following equation:
\[\ce{CuSO4 + NH3OH ->}\]
Write the balanced equation for the following chemical reaction.
\[\ce{Hydrogen + Chlorine -> Hydrogen chloride}\]
