Afreshly brewed cup of coffee has temperature 95°c in a 20°c room. when its temperature is 65°c, it is cooling at a rate of 1°c per minute. when does this occur? (round your answer to two decimal places.)

0.124852646168445242424

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.