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1.

Bellwork 11-20-2014:

Honors

Write the chemical formula for Potassium

Permanganate.

2.

Write the chemical formula for Sodium

Chromate.

3.

Name the compound Ca(OH)

2

Have out your homework (polyatomic and monoatomic ion worksheets) to be stamped!

Announcements: Honors

Deadlines:

Summative writing assignment: today after school

Turn in lab for late grade: today after school

Tutoring moved to TODAY

**Element

**Compound

**Diatomic Element

Vocab Cards!

Octet

Outer shell

Polar covalent bond

Lewis dot structure

Valence electrons

Dissociation

Solubility

Electronegativity

Non-polar covalent bond

Ionic bond

Electrical conductivity

Cation

Anion

Vocab Smash Game Rules

You cannot start FAST WALKING until I have read the question completely

NO RUNNING OR PUSHING!

Teammates: DO NOT YELL OUT THE ANSWER!

Each correct hit = 1 point

If there is a tie: the face off will be correctly writing the chemical formula for an ionic compound

Cool Videos

 https://www.youtube.com/watch?v=ASLUY2U1M-

8&list=PLA97087254E575992&index=4

Bellwork 11-25-2014

1.

2.

3.

4.

Have out homework on writing and naming ionic compounds to be checked!

Have out lab notebook: I will check ionic vs. covalent bonding lab and ionic bonding puzzle lab (EVERYONE!)

Write the chemical formula for Lead (III) oxide using the crisscross method

Name the compound: MgO using the rules from your note-taker

Announcements

Go over homework

If you did not show me your labs today, I need to see them by tomorrow!

1.

2.

3.

4.

5.

Writing and Naming Ionic

Compounds HW

Writing: Naming:

CaBr

2

BaO

K

2

S

LiF

Na

3

N

6. Ca

3

N

2

7. MgCl

2

8. Be

3

P

2

9. Fe

2

O

3

10. CuBr

2

1. Sodium Sulfide

2. Potassium Chloride

3. Calcium Sulfide

4. Lithium Oxide

5. Beryllium Nitride

Where are we?

Intramolecular forces Intermolecular forces

Between elements

Lewis structures of single elements and molecule bonds

Between molecules

Lewis structures of molecules (interactions)

Ionic

Anion Cation

Covalent

Polar

Non-polar

Molecular shapes

Dipole-dipole

Hydrogen

London dispersion

Ion-dipole

Polarity

Intermolecular Forces:

Exploration

Read the first part of your note-taker and

INDEPENDENTLY write down in the think column (2 min)

Share with your neighbor and write down any additional observations they made that you did not (2 min)

Share with the class and write down any additional observations that others in the class cam up with (3 min)

Quiz

Explain how ionic bonds are formed using cations, anions, charge (+/-) and give an example.

Intermolecular Forces:

Exploration

We will come back to this substance and figure out what it is later!!

Intermolecular Forces

So far we have been looking at bonds and the forces that hold elements together in a compound

What were these forces?

Now we will look at INTER molecular forces:

the forces that hold 2 or more different compounds or molecules together.

Type 1: Dipole-Dipole

Dipole Moment: the charge distribution in a polar bond caused by differences in electronegativities between atoms in the bond

Shown using a vector: the

Head of the arrow is

δ end, butt of the arrow is the δ + end

Video – dipole-dipole

 https://www.youtube.com/watch?v=cERb

1d6J4-M

Dipole-Dipole Interaction

The attraction of one molecules dipole for the opposite dipole on another molecule

H

Cl

H

Cl

Type 2: Hydrogen

Interaction

More specific dipole-dipole interaction

H-interaction:

The interaction of hydrogen’s dipole with opposite dipole on a O, N or F atom ONLY

Water Demos

Why does the soap make the cinnamon scatter?

Soap Molecule

Type 3: London Dispersion

Force

Forces between 2 molecules that are nonpolar or have no dipole moment

Attraction of p+ of one molecule for the eon another molecule

This creates a temporary dipole on each molecule, which interact oppositely

https://www.youtube.com/watch?v=1iYKaj

MsYPY

Honors – Type 4: Ion-

Dipole Interaction

The interaction of a fully charged ion in solution with the oppositely charged dipole of the molecule making up the solution.

Predict: what would happen if you put NaCl in water? How would the resulting solution look after you mixed it?

Non Newtonian Fluid

Molecular Shape and

Polarity

Because all molecules take on different molecular shapes, some molecules may contain polar bonds and ultimately be polar

OR non-polar molecules.

Draw each example with its electron pair and molecular geometry to determine if the molecule is overall polar or non-polar

Name the interaction!

Hydrogen interaction

Name the interaction!

London Dispersion

Name the interaction!

Dipole-dipole

Homework

Worksheet on drawing intermolecular forces

DUE: Mon/Tue Dec. 1/2

Download