CHEM 1013 Quiz: Sea Water and Ocean Life
Document Summary
Geol 1033 03/16/17 seawater chemistry & ocean life: think of the ocean as a storage facility for water, o(cid:448)er 97% of the (cid:449)ater (cid:894)(cid:374)ot (cid:272)ou(cid:374)ti(cid:374)g froze(cid:374)(cid:895) o(cid:374) or (cid:374)ear the earth"s. Water is a polar molecule: in some molecules atoms do not share electrons equally, the oxygen atom pulls on the shared electrons in each hydrogen causing a partial positive charge on each hydrogen and a partial. Negative charge on the oxygen: the molecule has a positive end and a negative end, opposites attract this means that water can dissolve substances. Salinity: ocean salinity ranges from ~3. 3 to 3. 7 %; on average 3. 5, what could affect salinity, increase in salinity evaporation of seawater, freezing of seawater, decrease in salinity precipitation of rain or snow, river runoff, 2: residence times vary for different ions depends on how chemically active they are.
