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प्रश्न
On what basis is a chemical equation balanced?
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उत्तर
A chemical equation is balanced based on the law of conservation of mass; it states that "matter can neither be created nor be destroyed". If the number of atoms of various elements are different on the reactants' and products' side, it means they are either destroyed or created, which violates the law of conservation of mass.
संबंधित प्रश्न
Balance the given equation:
NH3 + CuO 
Cu +N2 +H2O
Write the balanced equations for the following reaction, and add the state symbols:
Magnesium carbonate reacts with hydrochloric acid to produce magnesium chloride, carbon dioxide and water.
Balance the following equation :
Fe + O2 → Fe3 O4
Balance the following equation. Also name the product formed.
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\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
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\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
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\[\ce{NH3 [g] + HCl [g] ⇌ NH4Cl [s]}\]
Word equation:
State which characteristic is observed in the above reaction.
Give an-example of a similar above characteristic, seen between two other gaseous reactants.
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Light energy
Name the following:
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- The nature of the individual elements.
- The speed of the reaction.
- The state of matter in which the substance is present.
- The completion of the reaction.
- The direction of the reaction.
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Cl2 + 2H2O + SO2 → 4HCl + H2SO4
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