❥How can an acid be diluted?​

Slowly pour all the acid into the water. Allow a minute or two for the acid to mix before using it, or stir gently with a clean glass rod, then rinse it in distilled water.

Before you perform the dilution itself, calculate the amount of water and acid needed for the desired concentration.Dilution of concentrated acid is an exothermic process. If water is added to a concentrated acid, the heat generated may cause the mixture to splash out and cause burns. When the acid is added to water slowly with constant stirring, the mixture will not splash out.

You know how the first one if filled up like the objects do the same but with the other categories

True, the standard unit for volume is liters which can be represented by either a lower case "l" or a capital "l"