What is antimatter?Pls explain this too me
if you don't your dead

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

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

In the lab, ammonia was mixed with water to form ammonium hydroxide. what is/are the reactant(s)? o water and ammonia o ammonia o ammonium hydroxide need