Writing a chemical equation with no reaction essentially involves showing the reactants that do not lead to any products due to the lack of chemical change. In chemistry, we often represent reactions with a formula. However, when a reaction does not take place, we can still write an equation to indicate that.
For instance, if we mix certain reactants and they do not react, we can represent it simply by listing the reactants separated by a plus sign. For example, if we have sodium chloride (NaCl) and silver nitrate (AgNO3) in a combined solution but no reaction occurs, we would write:
NaCl + AgNO3
It’s important to note that in such cases, the equation does not lead to any products, and we would not use an arrow as we typically do in a reaction equation. This notation serves to indicate that the compounds are present together but are not undergoing any chemical change at that moment.
In summary, writing a chemical equation with no reaction involves presenting the reactants without an arrow or products, illustrating that they exist together without participating in a chemical reaction.