Mount Rushmore is about 1.75 kilómetros tall how tall is mount Rushmore in millimiters

What semimetal can form four single covalent bonds.

Iron (3) oxide will decompose in the presence of hydrogen gas and heater to produced iron and digydrogen monoxide white a balanced chemical equation

The atom fluorine generally will become stable through the formation of an ionic chemical compound by accepting electron(s) from another atom. this process will fill its outer energy level of electrons.