Answer:
-Before balancing the equation, you need to determine the index of the components in the substances correctly to balance
-Between two atoms in the molecule N2 forms a stable triple bond, so nitrogen gas is denoted N2.
-Nitrogen in compounds with sodium carries a charge of -3, and sodium has a charge of +1 in all compounds, so we get NaN3
Explanation:
answer from VNese, used GGtranslate
Ok so next time maybe add that it explains the number of covalent bonds in the atom because... (and then explain CaF2 tendencies in following the octet rule, like if it adds to 8 or isn’t completed yet.)
If this isn’t enough I would highly recommend asking your teacher after class even if they don’t like you or are one of THOSE teachers they gotta help you or it’s not fair for them to count you off points.