Low density: low pressure: high density

is which. evaporation? water vapor? condensation/ liquid water

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.