$15 \, mL$ of water and $10 \, mL$ of sulphuric acid are to be mixed in a beaker.
$(i)$ State the method that should be followed with reason.
$(ii)$ What is this process called?

(N/A) $(i)$ The acid should be added slowly to the water with constant stirring. This is because the process of dissolving a concentrated acid in water is highly exothermic. If water is added to a concentrated acid,the heat generated may cause the mixture to splash out and cause burns. Adding acid to water allows the large volume of water to absorb the heat generated.
$(ii)$ This process is called dilution.