You are titrating 100 mL of HCl with 0.5M NaOH and the equivalence point is reached after the addition of 15mL of NaOH. What is the concentration of the HCL

The following transition occurs at a molecular level for a substance. what transition corresponds to this change in microscopic structure? the carbon dioxide molecules on the left are in a regular, tightly packed pattern. after heating, it becomes much lower density. a. melting b. boiling c. sublimation d. freezing