Ammonium acetate:
Formula C2H7NO<span>2</span>
Answer:
Na(OH)²
Explanation:
We look for the charges in the periodic table
Answer
Calculating the mass number for an atom requires that we know the atomic number and the number of protons in the atom’s nucleus. The mass number then gives us the average weight of atoms of a given element. However, as long as the number of protons equals the number of neutrons, the values balance out and we always obtain a whole number for the mass number.
Explanation:
those 3
