What is a chemical equation? How is it represented? Differentiate between a word equation and a molecular equation with suitable example.
Answers
Answer:
Word equations explain which substance reacts with another substance to form a new substance, while molecular equation use symbols and formulas with quantities showing reactants and products. For example, Zinc reacts with dilute sulphuric acid to produce zinc sulphate and hydrogen gas.
Explanation:
a chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side with a plus sign between the entities in both the reactants and the products and an arrow that . In a chemical equation, the reactants are written on the left, and the products are written on the right.
The coefficients next to the symbols of entities indicate the number of moles of a substance produced or used in the chemical reaction.
The reactants and products are separated by an arrow, usually read aloud as “yields.”
Chemical equations should contain information about the state properties of products and reactants, whether aqueous (dissolved in water — aq), solid (s), liquid (l), or gas (g).
Chemical equation is a representation of a reaction that brings in chemical changes.
It is represented in word form and in symbols.
Word equations explain which substance reacts with another substance to form a new substance, while molecular equation use symbols and formulas with quantities showing reactants and products.
For example, Zinc reacts with dilute sulphuric acid to produce zinc sulphate and hydrogen gas.
Word equation: Zinc + Sulphuric Acid → Zinc Sulphate + Hydrogen
Molecular equation: Zn+H_2SO_4Zn+H2SO4 → ZnSO_4+H_2ZnSO4+H2