Structure of Water
Why is water polar? Include a diagram and detailed explination.
Water is polar because of the bent shape of the molecule. The shape means most of the negative charge from the oxygen on side of the molecule and the positive charge of the hydrogen atoms is on the other side of the molecule. This is an example of polar covalent chemical bonding.
Draw both electronic dot and lewis structure for hydrosulfuric acid, potassium oxide, and molecular iodine. Label dipoles if they exist, type of bonds, classify and any other info
cant put photos so just try. put that badussy into it.
For each of the following iddentify the strongest intermolecular force between molecules/com/atoms. Chose from london dispersion forces, dipole dipole, hydrogen bonding
CO2
H20
H2
HF
Hbr
Xneon
Ethanol
Oxygen
Dipole- no hydro and polar
Np- dispersion
hydro- H plus FON
If Oh with a type of methane- hybrid
Write the formula for Iron (III) oxide. What is it’s traditional name?
Fe2O3 Ferric Oxide
what type of molecule is carbon dioxide
non polar
Relate the structure of water to concepts of adhesion, cohesion, capillary action, and surface tension
Classify following compounds as ionic, polar, nonpolar and which ones would dissolve in oil
AgNO3
C5H12
Potassium nitrate
hydrochloric acid
Mg(OH)2
Br2
Ionic, polar, ionic, polar, ionic
dont know if thats right, its what i got
dont know who gon dissolve in oil
Classify bonds and polar or non polar and name
HF
NH3
CH4
CO
CO2
CH3CL
Hydrogen flouride, hydro bond, polar
methane, disperson, np
amonoa. hydro bond, p
carbon monoxide, dipole dipole, polar
carbon dioxide, dispersion, non polar
chloromethane chlroine, polar, dipole dipole
What type of bonds are found in the following?
Molecule of iodine
Carbon dioxide
Molecule of iodine: Nonpolar covalent
Carbon dioxide: Polar covalent
polar compounds
Draw phase changes of water and explain which one is endo and exo. what does it mean?
Endo- heat goes in
Exo- heat goes out
solid ice melts to water which boils to water vapor endo
gas becomes cold to water and freezes to ice exo
Discuss characteristics of ionic, polar, and nonpolar molecules
ur moms gay and this is easy
Methane is a gas at room temp. Water and methane are both liquids at room temp but have diff boiling points. Using concepts of polarity and intermolecular forces clearly explain differences in boiling points.
A greater amount of hydro bonding can take place between water molecules between methanol. Thus, a greater amt of thermal energy is needed to overcome these intermolecular forces leading to its boiling pts being higher
What would you expect the pH range to be in H3PO4? NaOH?
H3PO4: 0-6.9 NaOH: 7.1-14
a covalent bond is a bond between a ---- and a ----
non metal and non metal
Draw and label two space-filling molecules as they would interact with a barium ion. Label everything! repeat for fluorine
draw
name the following
TiO2
P406
N2O5
IBr
MG3N2
(NH4)2S
Titanium oxide, Tetraphosphorus hexaoxide, Dinitrate pentaoxide, iodine monobromide, magnesium nitride, ammonium sulfide
Types of bond review
Ionic- transfer of electrons
NP- equal sharing of electrons
P- unequal sharing of valence electrons
Identify each as polar, non-polar or ionic?
HCl b. Nitrogen gas c. C3H8 d. KCl e. methanol
HCl: P b. N2: NP c. C3H8: NP d. KCl: I e. P & NP
which of the following are hybrid molecules? choose all that apply
phospholiquid
ethanol
water
sulferdioxide
phospholiquid
ethanol
Zinc Bromide
Phosphorus PentaBromide
Lead (IV) Oxide
Nitrogen monoxide
Silver phosphate
Silicon Dioxide
ZnBr PBr5 Pb04 NO AgP SiO2
What bond is CH3OH
Hybrid, polar/non polar
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