(aq) It means aqueous.
Example: NaCl(aq)
Not a chemical reaction but the formation of hydrogen bromide (or hydrobromic acid, HBr) water solution.
It is a chemical reaction
Heat (but no chemical reaction): this is enthalphy of solution.
If the water being added is pure, and the solvent in the copper sulfate solution was water, then no, this should not result in a chemical reaction. The visual change is due to dilution of the solute
There is no chemical reaction between sod chloride solution and water, it would just dilute the sod chloride solution.
Not a chemical reaction, but the formation of a water solution of hydrofluoric acid.
(aq) aqueous.
Not a chemical reaction but the formation of hydrogen bromide (or hydrobromic acid, HBr) water solution.
This is a neutralization reaction; the products are a salt and water.
It is a chemical reaction
This reaction is called neutralization.
Foam is a solution of soap in water.
Heat (but no chemical reaction): this is enthalphy of solution.
If the water being added is pure, and the solvent in the copper sulfate solution was water, then no, this should not result in a chemical reaction. The visual change is due to dilution of the solute
There is no chemical reaction. In maple syrup the sugar is dissolved in water. When the water evaporates the sugar comes out of solution and forms crystals.
No. Salt and water becomes a solution, not a new compound.
There is no chemical reaction between sod chloride solution and water, it would just dilute the sod chloride solution.