Covalent bonds

What do we call a covalent bond where electrons are shared UNEVENLY or UNEQUALLY?

• Ionic
• Polar Covalent
• Nonpolar Covalent
• Van der Waals Force

forms when one atom donates a pair of electrons to be shared with an atom or ion that needs two electrons to become stable

• coordinate covalent bond

• covalent bond

• polar covalent bond

• sigma bond

Which Lewis structure below is correct for CH₂Cl₂?

• 
• 
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Nonpolar covalent bonds are not common because

• ions always form when atoms join

• dipoles are rare in nature

• one atom usually attracts electrons more strongly than the other

• the electrons usually remain equally distant from both atoms

Which of the following is the correct Lewis dot structure for the molecule fluorine (F₂)?

• A
• B
• C
• D

Which molecule would have this shape?

• BF₃
• CH₄
• PCl₅
• CO₂

Who could this molecule be?

• CH₄
• CO₂
• PCl₅
• BF₃

Which of these has a linear molecular shape?

• SCl₂
• SiH4
• NH3
• O₂

One can predict the shape of a molecule by drawing its Lewis structure and

• balancing the oxidation numbers.
• accounting for nonbonded pairs of valence electrons.
• determining the empirical formula.
• identifying the presence of polyatomic ions.

VSEPR stands for ________ theory.

• Valence Structure of Electron Pyramids and Regression
• Varied Structures of Electrons Paired and Replaced
• Varied Shell Energy of Protons and Radiation
• Valence Shell Electron Pair Repulsion