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प्रश्न
Fill in the blank with the correct word from the options given below:
A chemical equation is a shorthand form for a _______ change.
विकल्प
physical
chemical
उत्तर
A chemical equation is a shorthand form for a chemical change.
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संबंधित प्रश्न
How will you indicate Exothermic reaction in a chemical equation?
Balance the given equation:
Fe + O2 
Fe2O3
One of the following does not happen during a chemical reaction. This is:
(a) Breaking of old chemical bonds and formation of new chemical bonds
(b) Formation of new substances with entirely different properties
(c) Atoms of one element change into those of another element to form new products.
(d) A rearrangement of atoms takes place to form new products.
Write symbolic representation for the following word equation and balance them :
Aluminium + Chlorine → Aluminium chloride.
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate moles of chlorine gas formed.
Identify the type of reaction taking place of the following case and write the balanced chemical equation of the reaction:
Zinc reacts with silver nitrate to produce zinc nitrate and silver.
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
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.
2H2 + O2 → 2H2O
What is meant by ‘reactants’ and ‘products’ in a chemical equation?
Balance the following simple equation:
CO2 + C → CO
