What properties of water allow the water cycle to maintain a balanced climate?

Explanation:

The properties of water that helps water cycle to maintain balanced climate is evaporation, condensation and precipitation. In evaporation, water takes up energy from its surroundings and decrease the temperature of environment and when it condenses, it releases energy  and  the environment get warm. Precipitation is a process that releases water from clouds as rain sleet, snow, or hail. These three properties of water helps to maintain the climate.

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%