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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 formula of the substances involved in the reaction.
संबंधित प्रश्न
On what basis is a chemical equation balanced?
Give one example of an exothermic reaction.
Balance the following chemical equation:
Write your observations and name the product when
Iron nails are added to an aqueous solution of copper sulphate.
Write the chemical equation for the following word equation and balance them.
Nitrogen + Oxygen → Nitrogen monoxide
In certain reaction a change of state is observed i.e. solid to liquid, liquid to gas etc. – State the change of state of the products – to give the respective reactant.
NH3 + HCl ⇌ NH4Cl
Give word equation for the following chemical reaction and give the names of the product formed.
ZnCO3 → ZnO + CO2
Balance the following simple equation:
Ca + H2O → Ca(OH)2 + H2
Writing a chemical reaction in brief by using chemical formulae is called as _______.
Complete the following blank in the equation as indicated.
\[\ce{CaH2_{(s)} + 2H2O_{( aq)}-> Ca(OH)2_{(s)} + 2H2_{(g)}}\]
Grams: 42 g + ______ `→` ______ + ______
