Tare the balance. Put calorimeter (no lid) on the balance.
Measure the mass to the nearest 0.01 g. g.
DONE

12.46

Explanation:

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 body's situation won't change the forces are equal opposit and on the same body