Answer the following questions in your lab notebook (be sure to show work for any calculations): 1. A dense plastic-like shape has a mass of 42.985g and has a volume of 41.96mL. What is the density of the substance? 2. Another plastic-like piece has a mass of 65.389 grams and displaces 53.652 grams of water (measured at 24.6C ). Is this piece likely to be composed of the same material as the sample in problem 1? Explain using the Claim-Evidence-Reasoning process. 3. Here are two possible methods for measuring the volume of an irregular shaped object: a) Add it to a graduated cylinder containing a known volume of water. Measure the change in the volume of the water after the object has been added. The graduated cylinder is graduated in 1mL increments. b) Add the object to a vessel that is full of water. Collect and measure the mass of the water that is displaced on a digital balance that provides mass to the 0.001g. Determine the volume using the tabulated densities of water in table 1.1. Which method would be more likely to produce a more precise measure of the volume of an object