Non-polar.
This is because there are no lone pair valence electrons on the central atom (Carbon) when this is plotted on a Lewis Dot Structure.
Since Oxygen double bonds and Carbon holds 4 valence electrons, all center electrons are paired, thus sharing everything equally and making the molecule non-polar.
Hope this helps!
I believe it would be 7.731. x 10^5? That is if they want you to evaluate.
Answer:
the law of conservation mass states that the mass of an isolated system cannot be created nor destroyed by any chemical reaction or physical transformation.
thus, there must be an equal number of atoms of an element present on both sides of the equation.