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BS 161 EXAM 1 NEWEST EXAM COMPLETE QUESTION WITH CORRECT DETAILED ANSWERS 2024 (VERIFIED ANSWERS) |ALREADY GRADED A+

Atoms have gained or lost electrons and are no longer electrically neutral are called _____. -
<>Ions
Describe a single covalent bond. - <>Holds a molecule of hydrogen together, involves 2
atoms sharing 2 electrons and two chlorine atoms are held together by this bond.
Describe an Ionic bond. - <>Formed by an attraction between atoms with opposite
charges, bond that hold NaCl together, Involves a transfer of one or more electrons from one atom
to another, Leads to the formation of a crystal lattice rather than distinct molecules and Weakest
type of bond shown.
Describe a double covalent bond. - <>hold a molecule of oxygen together, Involves 2
atoms sharing 4 electrons, strongest type of bond shown and carbon dioxide is held together by this
type of bond.
T/F
A water molecule is held together by 2 single polar covalent bond - <>TRUE
T/F
Because oxygen has a greater electronegativity than hydrogen, water molecules are polar w/ 2
partial negative charges near the oxygen atom and one partial positive charge near each hydrogen
atom. - <>TRUE
T/F
Atoms differ in their affinity for neutrons, a property called electronegativity. - <>FALSE
T/F
In general, electronegativity increases from left to right across each row of the periodic table and
also increases down each column. - <>FALSE
T/F
In a nonpolar covalent bond there is an equal sharing of electrons between two atoms while polar
covalent bonds involve an unequal sharing of electrons. - <>TRUE
T/F
A single molecule of Oxygen is held together by 2 double non polar covalent bonds. -
<>FALSE
T/F
A covalent bond is formed when 2 ato