Pretend you are taking a melting point of diphenylamine. You see some shrinking starting at a temperature of 50.3°C. You see a droplet of liquid at a temperature of 53.6°C. The sample is completely liquid by 54.8°C. How should you report the melting point?

The equation below shows the reaction of zinc with hydrochloric acid (hcl). zn (s) + 2 hcl (aq) —> zncl2 (aq) + h2 (g) what will happen if the concentration of hcl is decreased? a. more zncl2 will be produced. b. the reaction rate will slow down. c. the hydrochloric acid will become more acidic. d. the reaction will produce water instead of hydrogen gas.