Asolution is prepared by dissolving 10.8 g ammonium sulfate in enough water to make 100.0 ml of stock solution. a 10.00- ml sample of this stock solution is added to 50.00 ml of water. calculate the concentration of ammonium.

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Match the name of the following compound:   mgso4  · h2omagnesium sulfate monohydratemagnesium (ii) sulfate monohydratemagnesium (ii) sulfate hydratemagnesium sulfate hydrate

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 !