Calculate the Specific Heat Capacity of a sample with a mass of 3.4 g that changes temperature by 64 Celcius when 435 Joules of heat are added

What is the mass of 4 molecules of co2

0.09 moles of sodium sulfate in 12 ml of solution

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 !