Chemical Equation
Chemical Equation
Chemical Equation:
A chemical equation is a short hand representation of a chemical reaction using the symbols and formulae of substances involved in the chemical reaction. The symbols and formulae of the substances (elements or compounds) are arranged to show the reactants and products of a chemical reaction. Atoms in a molecule are held together by a force of attraction called bond.
The molecules do not participate directly in a chemical reaction. First they break down into atoms and these atoms then take part in the reaction. New bonds are formed between the atoms to form the products. There takes place the rearrangements or regrouping of atoms in various ways to give products.
Rules for writing chemical equation:
Certain rules have to be followed while writing a chemical equation
Which of the following are correct ? (a) A Chemical Equations is the shorthand form of representing a chemical reaction using symbols and formula. (b) The element/compounds involved in the reaction are called products and the new elements/compounds formed are called the reactants. | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following are correct : (a) Atoms in a molecule are held together by a force of attraction called bond. (b) The molecules do not participate directly in a chemical reaction. (c) The reactants taking part in the reaction and written in terms of molecular formulae on the left-hand side of the equation. | |||
| Right Option : D | |||
| View Explanation | |||
In a chemical equation names of the ____________________ are written on the left hand side . | |||
| Right Option : B | |||
| View Explanation | |||
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