Answer:
Ca generally loses two electrons from its outer shell to form a Ca2+ ion.
Answer:It is necessary to use Kelvin for the temperature and it is conventional to use the SI unit of liters for the volume.
Explanation:
However, pressure is commonly measured in one of three units: kPa, atm, or mmHg. Therefore, can have three different values.
Atomic mass <span>of zinc ( zn ) is 65 u
Answer B</span>
