A double replacement reaction can be best described as a reaction in which a substitution takes place.
two atoms of a compound are lost.
ions are exchanged between two compounds.
electrons are exchanged between two atoms.

Calculate the number of molecules present in 0.750 mol of mgo.

Wind and moving water provide energy. chemical mechanical thermal none of the above

Complete the sentences to best explain the ranking.match the words below to the appropriate blanks in the sentences.a less polar bondhigher molar massion-dipole forcesstronger intermolecular forcesdipole-dipole forcesdispersion forceshydrogen bonding1. h2s and h2se exhibit the following intermolecular forces:.2. therefore, when comparing h2s and h2se the one with a has a higher boiling point .3. the strongest intermolecular force exhibited by h2o is . therefore, when comparing h2se and h2o the one with has a higher boiling point.