BSC 114 Chapter 3 Study Exam Questions Correctly Answered.
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Course
BSC.
Institution
BSC.
BSC 114 Chapter 3 Study Exam Questions Correctly Answered.
Each water molecule is joined to _____ other water molecules by ____ bonds.
two ... hydrogen
four ... polar covalent
three ... ionic
two ... polar covalent
four ... hydrogen - CORRECT ANSWER four ... hydrogen
The unequal sh...
BSC 114 Chapter 3 Study Exam
Questions Correctly Answered.
Each water molecule is joined to _____ other water molecules by ____ bonds.
two ... hydrogen
four ... polar covalent
three ... ionic
two ... polar covalent
four ... hydrogen - CORRECT ANSWER four ... hydrogen
The unequal sharing of electrons within a water molecule makes the water molecule _____.
change easily from a liquid to gaseous form
polar
hydrophobic
ionic
have a low surface tension - CORRECT ANSWER polar
The tendency of an atom to pull electrons toward itself is referred to as its _____.
ionic potential
, tonicity
covalency
electronegativity
polarity - CORRECT ANSWER electronegativity
In this molecule, what type of bond is found between the oxygen and hydrogens?
The figure shows the molecular model of a molecule, which consists of two hydrogen atoms connected
to an oxygen atom. The oxygen atom has a negative charge. Two hydrogen atoms have positive charges.
hydrophobic
nonpolar covalent
hydrophilic
polar covalent
ionic - CORRECT ANSWER polar covalent
Which of these bonds is weakest?
The figure shows a bond between positively charged Na atom and negatively charged Cl atom. Na ion
has five electron pairs, and four of them are located in the outer electron shell. Cl ion has nine electron
pairs, and 4 of them are located in the outer electron shell.
The figure is a molecule, where hydrogen atoms are attached to an oxygen atom by an electron pair
each. Moreover, oxygen atom has its own three electron pairs in the outer electron shell. One of shared
electron pairs is marked with an arrow.
The figure illustrates a molecule, which consists of four hydrogen atoms and one carbon atom.
Hydrogen atoms are connected to the carbon atom by an electron pair each. These electron pairs are
located at the intersection of the electron shell of hydrogens and the outer electron shell of the carbon
atom. Moreover, the carbon atom has its own electron pair in the inner electron shell - CORRECT
ANSWER The figure shows a bond between two molecules. Each molecule consists of two small atoms,
which connect to the bigger one. This bond is formed between one of the small atoms from one
molecule and the big atom from the other molecule. This small atom has a delta plus charge, and the big
atom has a delta minus charge. This bond is marked by three points.
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