a piece of metal with a mass of 121 g is placed in a 50 ml graduated cylinder. the water level rises from 20. ml to 35 ml. what is the density of the metal?

What is the molecular weight of copper

Select the correct answer. why are scientific models important in the study of science? a. they always involve critical mathematical calculations. b. they scientists understand complex ideas and objects that aren’t easy to handle. c. they enable scientists to popularize their work in society. d. they are required when conducting any peer review process. e. they are necessary for turning a hypothesis into a law.

Asolution is produced in which water is the solvent and there are four solutes. which of the solutes can dissolve better if the solution is heated?