An uncovered pot of soup is simmering on a stove, and there are water droplets on the wall above the back of the stove. what sequence can you infer has occurred?
a. melting, then boiling
b. freezing, then thawing
c. vaporization, then condensation
d. condensation, then vaporization

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue