Why do we write a chemical equation?
Answers
The purpose of writing a balanced chemical equation is to know: the reactants (starting material) and products (end results) that occur. the ratios in which they react so you can calculate how much reactants you need and how much products can be formed.
hope it helps
Answer:
We write chemical equation to know:
1) The reactants (starting material) and products (end results) that occur.
2) The ratios in which they react so you can calculate how much reactants you need and how much products can be formed.
▪︎ It gives brief information about chemical reaction.
◇ More to know: ◇
☆ How to write a chemical equation ?
Step 1 : Writing skeletal Equation
Reactant's symbols are written on LHS, followed by an arrow. A sign of addition (+) is written between formulae of two reactants. Product's symbols are written on RHS of arrow. Number of atoms of each element should be same on both sides of the arrow.
Step 2 : Balancing of Chemical Equation
An equation in which number of atoms of each element is equal on both the sides of the equation is known as balanced chemical equation. A chemical equation is balanced so that the numbers of atoms of each type involved in a chemical reaction are the same on the reactant and product sides of the equation.
☆ Characteristics of Chemical Equation:
1) Complete information about reactants and products, e.g. number of molecules, mass, etc.
2) Physical states of substances.
3) Necessary conditions for chemical equation, e.g temperature, pressure, catalyst, etc.
4) Equation also shows if reaction is exothermic or endothermic.
5) Equation also shows reversibility of chemical reaction.
_________________
Hope it was helpfull ,
Thank you.