Draw three stages msf process and drive it's performance equations (pr, mf/md, mcw/md, ah/md, and ac/md)

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

Answer asap need it by wednesday morning calculate the ph of 0.02m hcl best answer will be brainliest

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 !