If 400 mg of iodine is dissolved in 31 ml of carbon tetrachloride, what is the mass percentage of iodine in the resulting solution? (carbon tetrachloride density equal to 1.6)

The mole ratio of hydrogen to ammonia is 3: 2.

Each calcium ion has a charge of +2, which can also be written as ca2+. if those ions move out of the neuron and no other ions are moving, the neuron would lose the positive charge associated with those ions and become more negatively charged.