Except D.
Pollution doesn't prevent cancer.
Unless the pollution is made of a cancer-curing medicine.
261.162 grams. Use the equation n=M÷Mr.
Answer:
The reason why atomic mass is usually not a whole number is because it is a weighted average of the mass numbers of isotopes
Explanation:
1s^2 2s^2 2p^6 for the Mg2+ ion.
The most concentrated solution is b
