BSC 2023 EXAM 1. QUESTIONS AND ANSWERS. LATEST

BSC 2023 EXAM 1. QUESTIONS AND ANSWERS. LATEST.Question 1 2 / 2 pts A covalent bond is: the transfer of electrons from one atom to another. an example of a bond that results in ionic compounds. an attraction of charged atoms. a sharing of electrons between two atoms. Question 2 2 / 2 pts The chemical behavior (ability to bond) of an atom is determined by the number of neutrons. size of the atom. mass of the atom. number and arrangement of electrons. number of protons. Question 3 2 / 2 pts What is oxygen's role in water's unique properties? It causes the formation of ionic bonds. It disposes of electrons. It's high electronegativity number contributes to the polar quality of water. Allows water to change state from liquid to solid. Question 4 2 / 2 pts A substance containing atoms of different elements in definite, fixed ratios that are bonded together is called a(n) molecule. isotope. none of the above compound. mixture. Question 5 2 / 2 pts What is the role of the polar covalent bond in water? It binds the hydrogens and oxygen together in a single molecule. It acts as an attractive force between two different water molecules. It only binds the hydrogens together. Question 6 2 / 2 pts The sequence of amino acids linked together to form a polypeptide is the primary structure tertiary structure secondary structure quaternary structure