Why is the bottom layer of a trophic pyrimid the

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.