When liquid water is exposed to 32 fahrenheit it? ?

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen

All phases of matter may have a fixed mass

What happens when two nitrogen atoms share electrons