Answer:
question 3: A
question 4: products and reactants
Explanation:
Due to the Octet Rule ...
Elements on the right side of the Periodic Table gain electrons in order to get the 8 valence electrons and form negative ions.
And elements on the left side of the Periodic Table lose electrons in order and form positive ions.
We know that C has a formal charge of +4 while each O element
has a formal charge of -2, therefore the formal charge of X is:
X + 2 – 2 * 3 = 0
X + 2 – 6 = 0
X = 4
<span>So X has a group number of 4.</span>
It is a covalent compound
