0.670 mol of beryllium nitrate, Be(NO3)2 are required for a specific chemical reaction you want to perform in the lab. What mass of Be(NO3)2 do you need to have precisely 0.670 mol of the compound?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

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 !

Select the statement that describe chemical properties a. antacid tablets neutralize stomach acid b. helium is the lightest monatomic element c. water freezes at 0 celsius d. mercury is liquid at room temperature