Answer only 2 and 4. With complete solution thank you. Please answer in separate paper.

II. Problem Solving 1. The density of Solid A is 20.7 g/ml while the another Solid B has a density of 15.7 g/mL. a. What volume of solid B will have the same mass as 200 cubic cm of solid A? b. What mass of solid B occupies the same volume as 450g of solid A? 2. A block of aluminum occupies a volume of 15.0mL and weighs 40.5g. What is the density? 3. A rectangular block of copper metal weighs 1896g, The dimensions of the block are 8.4 cm by 5.5cm by 4.6cm. From this data, what is the density of copper? 4. Find the pressure on steel due to the liquid Mercury at a depth of 76 cm. (Mercury's density 13.6 g/cm^3)