Biuret reagent contains ions which react with peptide bonds under the alkaline conditions of the reagent and produce the color change associated with the presence of protein.

Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?

•what conclusions can you make about the relationship between the volume of a gas and its temperature? • what conclusions can you make about the relationship between the volume of a gas and its pressure? • what possible variables have you not accounted for? as you did the procedures, is it possible that the atmospheric pressure may have changed? if it did change over the course of your experiment, then how would your results have been affected?

If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 300j of energy to the room?unit: