Niven wants to calculate the mass of mgo that is produced by the burning of 28.0 g of mg. what is the first step in niven’s calculation?

What semimetal can form four single covalent bonds.

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

Which of the following best describes the formation of plasma?