Jack and his lab partner did an experiment on the results of heating different combinations of chemicals on a hot plate. He performed four trials, each combining two different chemicals. Jack recorded several observations from the experiment.

which of his observations was a qualitative result?a. the product of the fourth trial was a liquid with a volume of 150 ml. b. the chemicals combined in trial one turned blue when heated. c. the product of the second trial was a solid with a mass of 50g.

Is laundry detergent an acid or a base?

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices