Una dieta saludable proporciona la energía y los nutrientes necesarios para sobrevivir y mantenerse saludable. Combinar una dieta saludable con un estilo de vida activo tiene enormes beneficios y ayuda a reducir el riesgo de enfermedades cardíacas, cáncer y obesidad.
Answer:
Total Ionic equation:
H₂²⁺(aq) + O₂²⁻(aq) + Mg²⁺(aq) + SO₃²⁻(aq) → Mg²⁺(aq)+SO²⁻₄(aq) + H₂O(l)
Explanation:
Chemical equation:
H₂O₂(aq) + MgSO₃(aq) → MgSO₄(aq) + H₂O(l)
Balanced chemical equation:
H₂O₂(aq) + MgSO₃(aq) → MgSO₄(aq) + H₂O(l)
Total Ionic equation:
H₂²⁺(aq) + O₂²⁻(aq) + Mg²⁺(aq) + SO₃²⁻(aq) → Mg²⁺(aq)+SO²⁻₄(aq) + H₂O(l)
Water can not split into ions because it is present is liquid form.
Answer:
4
Explanation:
It should be 4
The mass is 9
There are 5 neutrons
There are 9 - 5 = 4 protons
So it is the 4th element on the periodic table.
Remember this:
atomic mass= atomic number + number of neutrons
The atomic number (same thing as number of protons) in this case is 15. The atomic mass is 31.
So, we subtract 15 from 31 to find the number of neutrons.
31-15=16
16 neutrons!!!
