Four samples of gas each exert 675 mm hg in separate 3.5 l containers. what pressure will they exert if they are all placed in a single 3.5 l container? a.169 mm hg b.675 mm hg c.2.36 x 103 d. 2.70 x 103

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

Which states of matter have particles that move independently of one another with very little attraction?

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 !