Chemical Reactions and Equations

Chemical Reactions and Equations question answer are provided in this post including NCERT questions also. Why should a magnesium ribbon be cleaned before burning in air ? Answer: Magnesium gets covered with a layer of magnesium oxide when kept in air for a long time. This layer hinders the burning of magnesium. Hence, it is […]

The short notes for the chapter Chemical Reaction and Equation are as follows: The representation of chemical reaction by means of symbols of substances in the form of formulae is called chemical equation.For example N2 + 3H2 ⇌ 2NH3 A balanced chemical equation has equal number of atom of each element participating in the reaction on both