Before using any chemical in the lab why should one first read the material safety data sheet

Before using any chemical in the lab, one should first read the Material Safety Data Sheet (MSDS) because it is important for laboratory safety. ... The Material Safety Data Sheet (MSDS) is available for all the chemicals used in the laboratory and it may be written, printed or electronic.

Explanation:

a. as the temperature increases, the kinetic energy of the gas molecules increases & the molecules move faster & further away from each other.

b. if you decrease the temperature of a fixed amount of gas at constant pressure, the combined gas law reduces to charles's law. in this case, volume will also decrease.