When determining whether a chemical reaction has taken place, you observe and look for several indicators. which would be considered an indication that a chemical reaction or chemical change has taken place? a) solid melts. b) heat is given off. c) substance dissolves d) substance changes shape.

What is the difference between covalent bonds and ionic bonds? covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the electrical attraction between charged atoms. covalent bonds involve the transfer of electrons between charged atoms; ionic bonds involve the sharing of electrons between atoms. covalent bonds involve the sharing of pairs of electrons between atoms; ionic bonds involve the sharing of single electrons between atoms. covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the sharing of protons between charged atoms.