Unit 2 AP Chem

The molecule is not polar. Oxygen and oxygen have the same electronegativity and therefore shows a clear equal sharing of electrons.

Based on the diagram you just drew (O2), is the molecule polar? Explain.

The carbon-carbon bond on the left is stronger because it is a double bond.

Compare the strength of the two carbon-carbon bonds in the molecule. (Drawing of lewis diagram with C = C - C with other H's connected)

The ions are free to move. (Drawing of Na+ and Cl- that are equal in size and not connected)

Draw a particulate diagram of a metal and nonmetal that shows how an ionic compound is a good conductor of electricity. Justify your answer.

••O•• = ••O••

Draw complete lewis diagram of O2.

H - C - H with O double bonded to C with 4 ve- on the O

Draw lewis diagram of CH2O

••O•• = C = ••O••

Draw lewis diagram of CO2.

••N - ••O•• - H N has a single bond above and below to two more H's.

Draw lewis diagram of H3NO.

N2 has a shorter bond length than in the N-N bond in N2H4.

Draw the lewis diagram of N2H4, compare the length of the N-N bond in the N2 with the length of the N-N bond in N2H4.

The hybridization of the N atoms is sp3.

Identify the hybridization of the N atoms in N2H4.

The bonding in the compound is nonpolar covalent.

Make a claim about elements with the same electronegativity and how they might form bonds.

The electronegativity difference between the elements in the compound is relatively large.

Make a claim on how to determine if a binary compound is ionic.

There is ionic bonding between Mg2+ ions and NO3 3- ions.

On the basis of electronegativity differences between atoms, make a scientific claim regarding the bonding in Mg(NO3)2 (s).

Graph with X on the horizontal axis to the right of the line.

The following graph shows the potential energy of two nitrogen atoms versus the distance between their nuclei. Indicate the distance that corresponds to the bond length of N2 molecules by placing an X on the horizontal axis.

+ - + - + - (The + are small and the - are big. They are not connected.)

The particles in solid Kl, a stable ionic compound, are arranged to maximize coulombic attractions while minimizing coulombic repulsions among the particles. Draw a diagram that shows this.

Brittleness (the tendency to crack or break; opposite of elasticity)

The particulate-level diagram shown below best helps to explain which property of ionic solids. (picture of bonded compound being pushed on different sides by force and the layers repel)

You have an unequal sharing of electrons causing partial charges on atoms in a compound.

What is a polar molecule?