38 the boiling points, at standard pressure, of four compounds are given in the table below. compoundboiling point (oc)h2o100.0h2s-59.6h2se-41.3h2te-2 .0
what type of attraction can be used to explain the unusually high boiling point of h2o?
(1) ionic bonding
(2) hydrogen bonding
(3) polar covalent bonding
(4) nonpolar covalent bonding

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?

Draw the lewis dot structure for each of the following polyatomic ions

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m