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प्रश्न
Differentiate between:
A balanced and an unbalanced chemical equation.
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उत्तर
- Balanced chemical:
A balanced chemical reaction is one in which the number of atoms of each element on the reactant side is equal to the number of atoms of that element on the product side.
Example: H2 + Cl2 → 2HCl - Unbalanced chemical:
The number of elements on the reactant side is not equal to the number of elements on the product side.
Example: H2 + Cl2 → HCl
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संबंधित प्रश्न
Write balanced chemical equations for the following word equation:
Calcium oxide + water → Calcium hydroxide
State four conditions necessary for a chemical reaction to take place.
Balance the following equation. Also name the products formed.
`H_2O_2 → H_2O +O_2`
Balance the following equation:
\[\ce{Pb3O4->PbO + O2}\]
Balance the following equation:
\[\ce{Al + O2->Al2O3}\]
Balance the following important equation:
Al2O3.2H2O + NaOH → NaAlO2 + H2O
Balance the following important equation:
Al + Cl2 → AlCl3
Which of the following are combination reactions?
- `2"KClO"_3 overset("Heat")(->) 2"KCl" + 3"O"_2`
- `"MgO" + "H"_2"O" -> "Mg"("OH")_2`
- `4"Al" + 3"O"_2 -> 2"Al"_2"O"_3`
- `"Zn" + "FeSO"_4 -> "ZnSO"_4 + "Fe"`
Write the balanced chemical equation for the following reaction
Copper sulphate on treatment with potassium iodide precipitates cuprous iodide (Cu2I2), liberates iodine gas and also forms potassium sulphate.
Complete and balance the following equation:
\[\ce{C2H4Br2 + alcoholic KOH ->[\Delta]}\]
