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Section 4.2
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1
What are molecular compounds composed of?
A)two or more different metals
B)two or more atoms of the same element
C)a combination of two or more metals and non-metals
D)two or more different non-metals
2
How does a molecular compound form?
A)A molecular compound is formed only when atoms share multiple pairs of electrons to form a covalent bond.
B)In a molecular compound, the electrons are transferred between atoms, similar to electrons in an ionic compound.
C)In a molecular compound, the shared electrons are attracted to the nuclei of both atoms.
D)In a molecular compound, the atoms share electrons so that each atom has a full set of electrons in its inner energy level.
3
What is the difference between a molecule and a molecular compound?
A)A molecule contains two or more atoms of the same element; a molecular compound contains two or more atoms of different elements.
B)A molecule contains only one atom; a molecular compound contains two or more atoms.
C)A molecule contains two or more atoms joined by an ionic bond; a molecular compound contains two or more atoms joined by a covalent bond.
D)A molecule is composed of only two atoms; a molecular compound is composed of three or more atoms.
4
If the number of atoms of each element in a molecule is two, then which prefix is used in the name of the binary molecular compound?
A)tri-
B)mono-
C)di-
D)tetra-
5
If the prefix “hepta-“ is used in the name of the binary molecular compound, then what is the number of atoms of each element in a molecule of the compound?
A)four
B)three
C)five
D)seven
6
If the number of nitrogen atoms in the first element of the binary molecular compound is four, what is the first part of the name?
A)dinitrogen
B)tetranitrogen
C)hexanitrogen
D)octanitrogen





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