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प्रश्न
What is the chemical equation. How is it represented?
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उत्तर
“Chemical equation is a short form – representing the result of a chemical change.”
OR
“Is the representation of a chemical change.”
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संबंधित प्रश्न
What are the limitations of a chemical equation ?
Balance the following equation:
H2 + O2 → H2O
Balance the following equation:
Na2O + H2O → NaOH
Balance the following equation. Also name the products formed.
`Mg + O_2 → MgO`
Write the balanced equation for the following chemical reaction.
\[\ce{Sodium + Water -> Sodium hydroxide + Hydrogen}\]
Balance the following equation:
\[\ce{KHCO3->K2CO3 + H2O + CO2}\]
Balance the following important equation:
NaOH + H2SO4 → Na2SO4 + H2O
A teacher gave two test tubes to the students, one containing water and the other containing sodium hydroxide. She asked them to identify the test tube containing sodium hydroxide solution. Which one of the following can be used for identification?
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.
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.
