Which state of matter expands when heated and is easy to compress

One significant difference between an ionic bond, where electrons are taken from one atom and added to another atom, and a covalent or metallic bond, where electrons are shared is

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change