Exam 4: Molecular Compounds

Based on your knowledge of electronegativities determine whether the bonds between the following pairs of atoms are ionic,polar covalent or nonpolar covalent: A) F-F B) Cs-Br C) N-S

Match the following. -oxygen difluoride

A bond where the electrons are shared equally is called a(an)________ bond.

When two atoms share one or more pairs of electrons,a covalent bond is formed.

Which of the following structures is likely to exist?

The formula for sulfur hexabromide is

A section of the Periodic Table containing main group elements is shown.If the elements W,X,Y,and Z have electronegativity values of 1.0,2.0,2.5,and 3.5,respectively,which bond is the least polar?

For the structure shown,the most likely elements are X = ________ and Y = ________.

If SiCl₄ is named as a covalent compound,what would it be called?

The smallest possible unit of a covalent compound is a(an)

Match the following. -methane

In a covalent compound,the bond length can be defined as the distance between

The carbon dioxide molecule is linear.The electronegativities of C and O are 2.5 and 3.5,respectively.Based on these values and on consideration of molecular geometry,the C-O bond is ________ and the molecule is ________.

The bond angle in the molecule H₂S is ________ because the ________.

Which group in the Periodic Table is most likely to contain the element X in the molecule whose dot structure is shown?

Although noble gases do not normally form covalent compounds,XeO₃ has been prepared.The systematic name of this compound is

In a Lewis dot structure the electrons which complete an octet but are not located between two atoms are referred to as

What is the molecular geometry of PH₃?

For the dot structure shown the most likely elements are X =________ and Y = ________.

The formula for carbon disulfide is