1. What is the flame color of sodium?
yellow-orange
purple
green
blue-green

If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?

In 2002, the rare earth elements mine in mountain pass, california was closed because

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 !