An ideal gas with an initial volume of 4.07 L is cooled at constant pressure to 25.0°C where its final volume is 3.41 L. What
was the temperature initially (in degrees Celsius)?

B. nuclear reactions could first occur.

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.