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Ionic And Covalent Bonding
Test Description: Review formulas, names and bonding tendencies!
Instructions: Answer all questions to get your test result.
1) An oxygen molecule has a double bond because
A
oxygen needs two more electrons
B
oxygen only bonds to oxygen
C
oxygen only makes double bonds
D
oxygen is a noble gas
2) Which molecule is nonpolar?
A
CCl2F2
B
H2O
C
CCl4
D
CO
3) Which substance will dissolve in water to conduct electricity?
A
NH3
B
CCl4
C
NaCl
D
CO2
4) At STP, fluorine is a gas and bromine is a liquid because
A
bromine has stronger covalent bonds
B
fluorine has stronger intermolecular forces
C
fluorine has stronger covalent bonds
D
bromine has stronger intermolecular forces
5) As phosphorus gains electrons, which of the following is true?
A
atomic radius decreases and it has a negative charge
B
atomic radius decreases and it has a positive charge
C
atomic radius increases and it has a positive charge
D
atomic radius increases and it has a negative charge
6) The formula of a copper-containing compound must include
A
color
B
charge
C
a prefix
D
roman numeral
7) If a polyatomic ion is present, what kind of bonding is present?
A
covalent
B
ionic
C
both covalent and ionic
D
neither covalent nor ionic
8) How many electrons are shared between the two atoms of a nitrogen molecule?
A
8
B
4
C
6
D
2
9) If a substance has a low boiling point and does not easily dissolve in water, it's bonding is most likely
A
covalent
B
both ionic and covalent
C
neither ionic nor covalent
D
ionic
10) A metal conducts electricity easily because
A
metallic bonds are weak
B
electrons are mobile
C
stationary electrons conduct electricity well
D
metals are shiny
*select an answer for all questions
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