In which substance would the particles be moving the fastest?
a. dry ice
b. iced tea
c. warm water
d. carbon dioxide gas

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.

b. latent learning (the word "latent" itself means something that exists but isn't obvious, only under certain conditions! )