In a constant-pressure calorimeter, the temperature of 60.0 g of water increases by 4.50 °C. What amount of heat is transferred to the water? (Specific heat capacity of water = 4.2 J/goC)

Ok so co(g) is not pronoused that. the only clue is that youpronouse it the oppisote way. 

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.