Question

In writing chemical equations, which of the following is least important?*

a. chemical symbols
b. physical state
c. number of atoms
d. number of reactants or products

Answer 1

chemical symbols is answer

Answer 2

The correct option is b.

• Let us take a chemical reaction-
• $NaOH+HCl\rightarrow NaCl+H_2O$.
• So, in this reaction to express a compound we have to write the chemical symbols of the compounds.
• In a chemical reaction the physical state of the reactants and products are not important.
• In a chemical reaction number of atoms is important to balance the reaction.
• Number of reactants or products are also important as in the above reaction number of reactants and products are 2.