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प्रश्न
What is a chemical equation ?
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उत्तर
Chemical Equation— A chemical equation is the symbolic representation of a chemical reaction using the symbols and the formulae of the substances involved in the reaction.
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संबंधित प्रश्न
Differentiate between:
Reactants and products.
Balance the following equation. Also name the products formed.
`Na + H_2 O → Na OH + H_2`
Balance the following equation. Also name the products formed.
`Zn+ HCI → ZnCI _2 + H_2`
Chemical equations suffer from a number of limitations. State the main limitations of a chemical equation.
Write a balanced molecular equation for the following word equation:
\[\ce{Lead nitrate + sodium chloride->Sodium nitrate + lead chloride}\]
Balance the following equation:
\[\ce{Al + H2SO4->Al2(SO4)3 + H2}\]
Balance the following important equation:
Cu + HNO3 (conc.) → Cu(NO3)2 + H2O + NO2
Name the products formed when iron filings are heated with dilute hydrochloric acid.
Write the balanced chemical equations for the following reactions and identify the type of reaction in each case.
- Iron (III) oxide reacts with aluminum and gives molten iron and aluminum oxide.
- Magnesium ribbon is burnt in an atmosphere of nitrogen gas to form solid magnesium nitride.
- Chlorine gas is passed in an aqueous potassium iodide solution to form potassium chloride solution and solid iodine.
- Ethanol is burnt in air to form carbon dioxide, water and releases heat.
What information is not conveyed by a balanced chemical equation?
