<span>An
atom with an atomic number of 12 has 12 protons. Because the mass
number is the sum of the protons and neutrons, the mass number would
need to be at least 12. I hope this helped!
</span>
Sodium carbonate is a basic salt because it is a salt derived from a weak acid and strong base.
I would say C.
The numbers on the map range from 48-64, so this shows that the trees need no more than 64 inches (so not answer choice d)
and no less than 48, since 48 is between 30-50, the answer is C.
C because they need Ribosomes to make protein and most cell needs protein to survive. Mitochondria because it produce energy for the cell.
~JZ
Hope it helps.
I believe the answer is C.
