Show:
Ionic and Molecular Compounds
Lewis Structures
Molecular Geometry + Electron Configuration
Intermolecular forces
Chemical Reactions
100

What is the molecular name for CO2

Carbon Dioxide

100

How many total electrons are distributed in the Lewis structure for H2O?

8 electrons (2 from H + 6 from O)

100

What is the bond angle of a trigonal planar molecule?

120 Degrees

100

What is the strongest force between molecules?

Hydrogen Bonds

100

Balance the following reaction:

H2 + O2 --> H2O

2H2 + O2 --> 2H2O

200

What is the name of the following compound:

Na2O

Sodium Oxide 

200

Draw a lewis structure for water, include non bonding electrons and dipoles. 

board.

200

What is the noble gas electron configuration of Iodine (Atomic #53)?

[Kr]5s24d105p5

200

In order to form a hydrogen bond you need: 

a ______ bonded to a hydrogen and a lone pair on a different ______

F, O, or N; F, O, or N 

200

In a redox reaction, the substance being oxidized:

a. Gains electrons

b. Loses electrons

Loses electrons

LEO the lion says GER

OIL RIG

300

A polar covalent bond has electronegativity between values of ___ and ___.

(0.5 - 1.8)

300

How many lone electrons are there on the central S atom of SCl2?

4 electrons, two lone pairs

300

What is the molecular geometry of a molecule with 3 bonded group and a lone pair?

Trigonal Pyramidal

300

What intermolecular forces are present in a pure mixture of liquid water?

Dispersion, dipole-dipole, hydrogen bonding

300

Is the following an oxidation or reduction half reaction?

O2(s) + 4e- --> 2O2- (s)


Reduction 

O2 gains four electrons

Reduction is gain

Gain Electrons Reduction

400

What is the name of the following compound:

Hg2SO4

Hg is mercury

Mercury (I) Sulfate 

400

There are a few exceptions to the octet rule when drawing Lewis structures:

Boron (B): Requires __ electrons and forms __ bonds

Beryllium (Be): Requires __ electrons and forms __ bonds

Boron: 6 electrons, 3 bonds

Beryllium: 4 electrons, 2 bonds

400

A molecule has bond angles of about 109 degrees and two of its electron groups are lone pairs. What is the shape of the molecule?

Bent

400

Rank the following from lowest to highest melting points: H2O, H2, NH3. 

H2 > HCl > H2O


H2: Dispersion

HCl: Dispersion, Dipole-Dipole

H2O: Dispersion, Dipole-Dipole, Hydrogen Bonding

400

Combustion reactions always have two products. What are those? 

CO2 and H2O

500

A student is given a molecule involving two bonded atoms. The electronegativity of the first atom is 0.93, and the second one has an electronegativity value of 3.16. What kind of bond is formed between the two?

Ionic (Electronegativity difference greater than 1.9)

500

What types of bonds are present in the Lewis Structure for HCN? Single, Double, Triple? How many lone pairs?

One single bond, one triple bond, one lone pair.

500

What is the electron geometry, molecular shape, and bond angles of NH3?

Electron geometry - Tetrahedral

Molecular shape - trigonal pyramidal

Bond angle - 109 degrees

500

Which of the following is affected by intermolecular forces?

a. Bond length within one molecule

b. Weight of molecules

c. Boiling points

d. Dipoles and polarity within one molecule

Boiling points

500

Which information is not conveyed by a balanced chemical reaction?

Physical states of reactants and products

Symbols and formula of substances involved

Number of atoms of reactants and products formed 

Arrow that shows if reaction is feasible or not 

Arrow that shows if reaction is feasible or not