How many moles are produced when 20.0 moles of ammonia react?

What semimetal can form four single covalent bonds.

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never

Is a pencil falling to the floor anon contact force, a force, or a contact force