The reaction image can be abbreviated as HCl → H+ + Cl-. How is this apparently important omission justified?

What is the molarity of a solution that is prepared by adding 57.1 g of toluene (c 7 h 8 ) (density = 0.867 g/ml) to a 250 ml volumetric flask, and then filling to the mark with benzene (c 6 h 6 ) (density = 0.876 g/ml)?

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen