Please help with this exercise

neutralization is a chemical reaction in which acid and a base react quantitatively with each other. In a reaction in water, neutralization results in there being no excess of hydrogen or hydroxide ions present in the solution.

the ore copper is extracted from: Chalcopyrite

The process or result of oxidizing or being oxidized.

the action or fact of making a specified thing smaller or less in amount, degree, or size.

I can't answer the other ones. sorry

The group two elements within the periodic table include names such as calcium and barium. All group two elements have two outer electrons within the s electron orbital. This yields similar physical and chemical properties. For example, all group two elements have low melting points, low boiling points and low densities.