N(Ca)/2 = n(O)/1 = n(CaO)/2
The calcium and the Calcium Oxide are divided by 2 because of their coefficients
there is no number in front of the oxygen so it is over one.
Hope this helped!!
One of the major events is Volcanos etc...
Answer:
a
Explanation:
because the others doesn't makes sense
Answer:
two electrons
Explanation:
Since every electron has a single negative charge, the addition of two electrons results in an oxygen ion with a charge of - 2
