Bubbles are observed to form in a liquid. what conclusion should be reached from this observation?

A2.5% (by mass) solution concentration signifies that there is a 2.5 % (by mass) solution concentration signifies that there is blank of solute in every 100 g of solution. of solute in every 100 g of solution

Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.

What prefix multiplier is appropriate for reporting a measurement of 5.57 ×10−5 m?