Which liquid would be the most difficult to raise or lower the temperature of
a. one with a low density
b. one with a high capacity
c. one with a high density
d. one with a low heat capacity

sodium (na), for example, has one electron in its valence shell. this is an unstable state because that valence shell needs eight electrons to be full. in order to fill its valence shell, find a way to add seven electrons to its valence shell

all eukaryotic cell have mitochondria : )