Week 3: Chemistry Of Life (Biology) 20 Correctly Answered Questions Latest Update

compound {Ans: a pure substance with unique properties formed when two or more different elements combine}atom {Ans: the building blocks of matter; contains subatomic particles: neutrons, electrons, and protons}ionic bond {Ans: an electrical attraction between two oppositely charged atoms or groups of atoms}molecule {Ans: a compound in which the atoms are held together by covalent bonds}chemical reaction {Ans: energy requiring process by which atoms or groups of atoms are changed into different substances}van der Waals forces {Ans: the attractive force between the positive and negative regions of different molecules}