What is a substance used to increase the rate of a chemical reaction but it itself is not used up in the process?

If soap hits the floor, is the soap dirty or the floor

When you perform this reaction, what could remain at the end of the reaction? check all that apply. excess reactant aqueous copper chloride excess reactant aluminum oxygen product solid copper carbon dioxide product aqueous aluminum chloride water

Give the orbital configuration of the phosphorus (p) atom.