What can chemical formulas represent?
compounds
mixtures
atoms
element

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?