Question

How are the following indicated in a chemical equation?

formation of precipitate

Answer 1

Chemical equation:

chemical equations are a symbolic representation of chemical reactions in which reactants and products are expressed in form of chemical formulas.

Precipitate:

1. The substance that gets deposited at the bottom after the reaction has occurred is called the precipitate.
2. If there is a formation of precipitate in a particular chemical reaction, it can be shown as a downward arrow ($\downarrow$) mentioned adjacent to the compound.

For example:

When Silver Nitrate$\left({\mathrm{AgNO}}_3\right)$ reacts with Sodium chloride$\left(\mathrm{NaCl}\right)$, it gives Silver chloride$\left(\mathrm{AgCl}\right)$ as the precipitate and Sodium nitrate$\left({\mathrm{NaNO}}_3\right)$ as a product.

${\mathrm{AgNO}}_3\left(\mathrm{aq}\right)+\mathrm{NaCl}\left(\mathrm{aq}\right)\to \mathrm{AgCl}\downarrow +{\mathrm{NaNO}}_3\left(\mathrm{aq}\right)$.

Final answer: The formation of the precipitate can be shown as a downward arrow$(\downarrow )$.