Why co does not obey lewis octet rule

This large tectonic plate is bounded on three sides by whats know as the ring of fire. what is the name of this tectonic plate? a) pacific plate b) eurasian plate c) north american plate d) indo- australian plate plz it's science but there's no option for science so i picked chemistry

What happens when an acid dissolves?

Determine the reaction and balance the following equations urgent due in the morning