Answer:
what you need to do is,
you take the relative atomic mass of each element and multiply it by the no of atoms it has. do this for all the elements present, and add the values. that's it!
Explanation:
try to do the last one by yourself, it is easy and you will be using the molecular/formula mass mostly everywhere in chemistry.
C) Each second, solid sodium chloride dissolves and solid sodium chloride recrystallizes
Answer:
kinetic energy
Explanation:
anything moving contains kinetic energy and anything standing still has potential.
Answer:
'*:*'
Explanation:
I know this looks weird, but
'= electron
*:* equals the nucleus, so 2 protons and 2 neutrons
and then '=electron
there ability to fill the available volume in a container
is the answer