Which procedure would best allow a scientist to observe a chemical property of hydrochloric acid HCl solution?
A
placing a conductivity probe into a beaker of HCl solution to determine if it conducts electricityB
adding zinc to the HCl solution and observing whether or not bubbles are producedC
measuring the mass of and volume of a sample of HCl solution to find its densityD
cooling the HCl solution until it becomes solid, and measuring this temperature