Solid chromium (II) reacts with oxygen gas to form solid Cro. What is this type of reaction?

At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas

Define the kinetic molecular theory

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.