Analyzes a binary compound of boron and hydrogen having the following percentage composition by mass: boron, 78.14%; hydrogen, 21.86%. In a separate experiment, she finds that the molar mass of the compound is between 27 and 28 g. Assuming 100.0 g of this compound, how many grams of B and H are there?

Need what is special about water as a compound? how does water regulate climate? what drives water evaporation?   why is the water vapor fresh water when it rises from the ocean? why might freshwater in the form of snow take longer to enter the water cycle again than liquid precipitation?   what is an aquifer? what role do people play in the water cycle? plz just answer as many as you can ! thx if you !