3) Mercury metal is poured into a graduated cylinder that holds exactly 22 ml. The mercury used to
fill the cylinder weighs 308 g. From this information, calculate the density of mercury.
D=
M=
V=

A block of aluminum occupies a volume of 15.0 mL and weighs 40.5 g. What is its density?d = 2.70 g/mL

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. The mercury used to fill the cylinder weighs 306.0 g. From this information, calculate the density of mercury.d = 13.6 g/mL

A piece of wood that measures 3.0 cm by 6.0 cm by 4.0 cm has a mass of 80.0 grams. What is the density of the wood? Would the piece of wood float in water? (volume = L x W x H)d = 1.11 gm/cm3

and so on

the dissolution of polymer can be thermodynamically described in 2 steps.

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.