Asolution in a dish contains 4.0 grams of salt dissolved in 100 grams of water. if 50 grams of the water evaporate, this is evidence that the solution is
an element
an compound
an mixture
a pure substance

Amount of liquid measured in l or lm

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?

Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?