Answer: A The protons in the nucleus repel each other
Explanation: the number of protons inside a nucleus increases the electrostatic repulsion between protons increase reducing the binding energy. Thus the electrostatic force determines the stability of a nuclear configuration
Anything that contains calcium comes from a strong acid. Nitrous oxide (NO2) is a weak acid, therefore the salt it makes is less acidic than the rest --> the highest pH :)
The mass of ice is the same as water because during a physical change, like a state change, mass is conserved. When the ice melts, all that changes is the physical state.
