Physical Science Review 5.3: Question Preview (ID: 15618)


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Which of the following has a covalent bond?
a) KF b) CaCl2 c) SF4 d) Al2O3
Which of the following is a polar covalent bond?
a) Cl-Cl b) Si-Si c) Ca-Cl d) P-Cl
Which of the following is a nonpolar covalent bond?
a) Cl-Cl b) Si-Si c) Ca-Cl d) P-Cl
covalent bonds are formed when 2 atoms ___________ valence electrons
a) share b) gain c) lose d) none of the choices
How many covalent bonds can a nitrogen (N) atom make?
a) 3 b) 4 c) 1 d) 2
O=O is an example of a ______________ bond
a) double b) single c) triple d) ionic
Molecular compounds do not have which of the following properties?
a) high boiling points b) low melting points c) poor conductivity d) none of the choices
The forces that hold ______________ together is _______
a) molecules; weak b) ions; weak c) molecules; polar d) ions; polar
What is necessary to conduct an electric current?
a) charged particles b) neutral particles c) molecules d) 2 of the choices
____________ molecules have ____________ bonds and mix well with polar molecules
a) polar; stronger b) nonpolar; stronger c) polar; weaker d) nonpolar; weaker
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