Answer:
Es la tercera por qué cuando el material varía va cambiando de estado
Explanation:
there are 6 moles of oxygen in Zn(No3)2
Answer: Isotopes of an atom are different because they have different atomic masses and different number of neutrons within their nucleus. They are the same since they will always have the same atomic number/number of protons in their nucleus.
Explanation:
Atomic weight is actually calculated by the sum of protons and neutrons of that atom. It is not equal to the number. You must add them for the result
Explanation:
b I dont really know okau