What did Paul Krebaum find through his research of hydrogen sulfide (H2S)? Explain using oxidation states of sulfur.

Acetic acid, hc2h3o2, dissolves and completely dissociates in water and a solvation sphere of water molecules forms around the ions. this solute-solvent interaction

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments

What is the chemical name of the compound ti2o3? use the list of polyatomic ions and the periodic table to you answer.