The set-up below was used to study some properties of air Moist iron wool
Test tube
Beaker
Water
State and explain two observations that would be made at the end of the
experiment​

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.