C:\ INIT 5/1/2014 BY DANIEL R. BARNES REM ITERATE DAILY SUBROUTINE FOR DAY = 1 to 183...

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C:\ INIT 5/1/2014 BY DANIEL R. BARNESREM ITERATE DAILY SUBROUTINEFOR DAY = 1 to 183DOBUISINESS(DATE,COURSE)NEXT DAY

Put your schedule in the wire basket by the front sink.

Sit at any table seat you want . . . for now . . .

Get out a brand new sheet of paper.

Put your name, period, and date in the upper right hand corner.

Entitle the paper “Chemistry Warm-Ups”

Stand by for further instructions.

Welcome to Mr. Barnes’ classroom, C215.

1/26/2015Monday

GRADING PROGRESS:CSA Standard 3 Scratch: 100%Honors Final Scratch: 100%Final Scratch: 100%

SWBAT . . .. . . Do warm-up questions correctly.. . . Do homework in the book correctly.

HOMEWORK: 12.1 all: read, take notes, make vocabulary flash cards, do Practice Problems, answer Section Assessment questions.

WARM-UP: Get out a blank piece of paper and entitle it “Chemistry Warm-Ups”. On the second line, write today’s date. Underneath that, copy this question and tell me what you’re going to do this semester to ensure your success.

1/27/2015Tuesday

GRADING PROGRESS:Nothing pending at this time.

SWBAT . . .. . . Perform stoichiometry calculations.HOMEWORK: none

(Finish 12.1 if you didn’t manage to do so last night.)

WARM-UP: Sit at any black table seat that is unoccupied. Tell me, on your warm-up sheet, what the advantages and disadvantages of that seat are.

1/28/2015Wednesday

GRADING PROGRESS:Nothing pending at this time.

SWBAT . . .. . . Perform stoichiometry calculations.

HOMEWORK: nothing new(Finish 12.1 if you haven’t done so already.)

WARM-UP: What is the eye-to-tentacle ratio on an octopus? How many tentacles per eye? How many eyes per tentacle?

1/29/2015Thursday

GRADING PROGRESS:Nothing pending at this time.

SWBAT . . .. . . Perform stoichiometry calculations.

HOMEWORK: 12.2 partial: Read/notes/card pg 359. Do Practice Problems #11 & #12 on page 360.

WARM-UP: What is a ratio? What calculator button does a ratio imply?

mol

2/2/2015Monday

GRADING PROGRESS:Nothing pending at this time.

SWBAT . . .. . . Perform stoichiometry calculations.

HOMEWORK: 12.2 continued: Read/take notes pg 360. Do Practice Probs #13 & #14 pg 361.

WARM-UP: What numbers help you convert from moles of one chemical to moles of another chemical?

Moles of this

Moles of that

PHC Ch 10 Crossword Puzzle

mol

2/3/2015Tuesday

GRADING PROGRESS:Nothing pending at this time.

SWBAT . . .. . . Perform stoichiometry calculations.

HOMEWORK: PrPr #13 & #14 if you couldn’t do them last night.

WARM-UP: Why is a mole ratio fraction not a true unit conversion fraction?

mol

2/4/2015Wednesday

GRADING PROGRESS:Nothing pending at this time.

SWBAT . . .. . . Perform stoichiometry calculations.

HOMEWORK:NORMAL: pg 366 #24; HONORS: finish 12.2 allALL: pg 379 #42abc, #44a

WARM-UP: What information allows you to convert moles to grams or grams to moles? In what units is this information given?

mol

2/5/2015Thursday

GRADING PROGRESS:Nothing pending at this time.

SWBAT . . .. . . Perform stoichiometry calculations.

HOMEWORK: Same as last night.NORMAL: pg 366 #24; HONORS: finish 12.2 allALL: pg 379 #42abc, #44a

WARM-UP: What is the molar mass of carbon dioxide? How did you get that?

CO2

C = 1 x 12 = 12 O = 2 x 16 = 32------------------------ 44 g/mol

mol

2/6/2015Friday

GRADING PROGRESS:Nothing pending at this time.

SWBAT . . .. . . Perform stoichiometry calculations.HOMEWORK:

Yet ANOTHER delay. (!!!)so, yet again . . . pg 366 #24; HONORS: finish 12.2 allALL: pg 379 #42abc, #44a

WARM-UP: Use whatever electronic devices your table has to look up the definitions of “gross”, “net”, and “tare”.

mol

2/9/2015Monday

GRADING PROGRESS:Nothing pending at this time.

SWBAT . . .. . . Perform stoichiometry calculations.

HOMEWORK:

ALL: 12.3 read, notes, vocab flash cards pp 368-369.

HONORS: also do PrPr #25-28

WARM-UP: How are you to clean up at the end of the period?

mol

2/10/2015Tuesday

GRADING PROGRESS:Nothing pending at this time.

SWBAT . . .. . . Perform stoichiometry calculations.HOMEWORK: none

WARM-UP: How can you be sure that you have 100 grams of vinegar in a beaker?

G = N + T

mol

2/11/2015Wednesday

GRADING PROGRESS:Nothing pending at this time.

SWBAT . . .. . . Perform stoichiometry calculations.HOMEWORK: BS & Vin lab

due tomorrow.

WARM-UP: What is the molar mass of baking soda?

NaHCO3: Na = 1 x 23 = 23 H = 1 x 1 = 1 C = 1 x 12 = 12 O = 3 x 16 = 48------------------------- 84 g/mol

12.3 Section Assessment

33. “In a chemical equation, an insufficient quantity of any of the reactants will limit the amount of product that forms.”

34. “The efficiency of a reaction carried out in a laboratory can be measured by calculating the percent yield.”

mol

2/12/2015Thursday

GRADING PROGRESS:Nothing pending at this time.

SWBAT . . .. . . Perform stoichiometry calculations.HOMEWORK: Study for

Tuesday’s ch 12 test

WARM-UP: Locate my baking soda & vinegar power point on hhscougars.org and click through it.

mol

2/17/2015Tuesday

GRADING PROGRESS:BS & Vin Lab: 30%

SWBAT . . .. . . Perform stoichiometry calculations.HOMEWORK: Ch 12

Bookwork and Worksheets Packet

WARM-UP: Get out a blank piece of paper and title it “Chapter 12 Scratch Paper”

Chapter 12 Assessment

42.The reaction of fluorine with ammonia produces dinitrogen tetrafluoride and hydrogen fluoride.

5F2(g) + 2NH3(g) N2F4(g) + 6HF(g)

a. If you have 66.6 g of NH3, how many grams of F2 are required

for complete reaction?

5F2 + 2NH3 N2F4 + 6HF

66.6 g NH3

1x

17 g NH3

1 mol NH3

NH3: N: 1 x 14 = 14 H: 3 x 1 = 3 17 g/mol

x2 mol NH3

5 mol F2 x1 mol F2

38 g F2

F2: F: 2 x 19 = 38 38 g/mol

= 372 g F2

2/18/2015Wednesday

GRADING PROGRESS:BS & Vin Lab: 30%

SWBAT . . .. . . use kinetic molecular theory to explain the properties of the states of matter.

HOMEWORK: 13.1 all, 13.2 all

WARM-UP: Get started on your homework. Unannounced question in a moment.

Chapter 12 Packet:

* All chapter 12 bookwork, in order.* Stoichiometry Practice Worksheet* Chapter 10 Crossword Puzzle

Both stamped & unstamped.In order & stapled.(Please do NOT include the lab.)(Please do NOT include warm-ups.)

Due NOW (Wed 2/18/2015)

2/19/2015Thursday

GRADING PROGRESS:BS & Vin Lab: 35%

SWBAT . . .. . . use kinetic molecular theory to explain the properties of the states of matter.

HOMEWORK: 13.3 all, 13.4 all. Study for ch 13 OPEN NOTE test.

WARM-UP: What is the boiling point of water?

NO TALKING

Yesterday was a chatty mess. It can not be allowed to happen again.You are obligated to work productively.

Control your behavior.

Headphones OKIt’s great if you love your job, but just remember that you don’t get paid for doing what you want to do. You get paid for doing what someone else wants you to do. You are not here to enjoy yourself. You are here to get a job done.

2/20/2015Friday

GRADING PROGRESS:BS & Vin Lab: 40%

SWBAT . . .. . . use kinetic molecular theory to explain the properties of the states of matter.

HOMEWORK: take a break from chemistry

WARM-UP: Get out your chapter 13 bookwork, put it in order, and staple it into a packet. You may only include your own hand-written bookwork. Name, period, and date must be on each sheet. Sorry, no flash cards allowed.

2/23/2015Monday

GRADING PROGRESS:BS & Vin Lab: 40%

SWBAT . . .. . . explain how changing one aspect of a gas affects the other aspects.. . . solve gas math problems involving P, V, n, and T.

HOMEWORK: 14.1 all

WARM-UP: Describe how the particles behave differently in solids, liquids, and gases.

2/24/2015Tuesday

SWBAT . . .. . . explain how changing one aspect of a gas affects the other aspects.. . . solve gas math problems involving P, V, n, and T.

HOMEWORK: 14.2 read/notes/flash cards to pg 419 + TRY PrPr 7 & 8; Make improvements to your BS & Vin lab report.

WARM-UP: What causes gas pressure? What affects how strong it is?

GRADING PROGRESS:BS & Vin Lab: “50%” (RS’s pending . . .)Ch 13 Packet HONORS: 67%Ch 12 Scratch NORMAL: DoneCh 12 Scratch HONORS: 0%Mag XCR: 0%

PERIOD 2 EVACUATION DRILL

* Students unable to travel will remain in the room, with the door open & unlocked. (Admin told security re: knee)* We take the big red hall pass with us.* I take my roll book so I can take roll on the field.* We travel together, as a class, to between the East Gym and the 11 building.* We turn left down the service road and proceed to the railroad track crossing point.* We go deep down the middle of the football field to the north 15 yard line.* I take roll.* We stay together and wait for further instructions.

2/25/2015Wednesday

SWBAT . . .. . . explain how changing one aspect of a gas affects the other aspects.. . . solve gas math problems involving P, V, n, and T.

HOMEWORK: 14.2 up through Pr Pr #9 & #10.

WARM-UP: What happens to the volume of a balloon that rises to a higher altitude. Why?

GRADING PROGRESS:Ch 12 Scratch NORMAL: DoneCh 12 Scratch HONORS: 17%Mag XCR: 0%

2/26/2015Thursday

SWBAT . . .. . . explain how changing one aspect of a gas affects the other aspects.. . . solve gas math problems involving P, V, n, and T.

HOMEWORK: 14.2 up through Pr Pr #13 & #14.

WARM-UP: What happens to a gas when you heat it up? Why?

GRADING PROGRESS:Ch 12 Scratch HONORS: 33%Mag XCR: 0%

2/27/2015Friday

SWBAT . . .. . . solve gas math problems involving P, V, n, and T.. . . use a spreadsheet to solve math problems. . . use a spreadsheet to graph functions/data [HON]

HOMEWORK: none

WARM-UP: Get out a blank piece of paper and title it “Gas Math Spreadsheet”

GRADING PROGRESS:Ch 12 Scratch HONORS: 67%Mag XCR: 0%

3/2/2015Monday

SWBAT . . .. . . solve gas math problems involving P, V, n, and T.

HOMEWORK: ALL: 14.2 Sxn Assmt. HON: also 14.3 all

WARM-UP: What is dangerous about gas math problems where temperature is the unknown?

GRADING PROGRESS:Ch 12 Scratch HONORS: 67%Mag XCR: 0%

2

22

1

11

T

VP

T

VP

P1V1

T1

=P2V2

T2

P1V1

T1

=P2V2

T2

When T is the unknown , there is danger . . .

P2V2 P2V2

But be careful! It’s not T2 on the right, it’s 1/T2 -- Just the opposite!

P1V1

T1

=1

T2P2V2 P1V1

T1=1

T2 P2V2

Flip it like a pancake!

3/3/2015Tuesday

SWBAT . . .. . . explain visible phenomena using kinetic theory.

HOMEWORK: Crushing Can Lab write-up.

WARM-UP: Get goggles & apron on. Title a blank piece of paper “Crushing Can Lab”.

GRADING PROGRESS:Ch 12 Scratch HONORS: 70%Mag XCR: 0%

Crushing Can Lab

PURPOSE: To crush a soda can using only atmospheric pressure.

MATERIALS: beaker tongs, bunsen burner, a pie tin, spark lighter, and any uncrushed soda cans your group brought.

PROCEDURE: What you do – and that’s for you to figure out. I’ll demonstrate my procedure to give you a rough idea.

DATA: Write down what you observe happening as you carry out the procedure.

CONCLUSIONS: Use kinetic molecular theory to explain what you observed in the lab. Your explanation must include writing. Drawings are strongly suggested.

Double point question! Standings will be announced today!English- ModifierHeads up! Modifiers are words or phrases the DESCRIBE something else in the sentence

In 1848, by agreeing to come together, the Associated Press was formed by six newspapers.

A. By agreeing to come together, six newspapers formed the Associated Pres in 1848.

B. In 1848, by agreeing, six newspapers cam together to form the Associated Press.

C. Six newspapers formed, by agreeing to come together, in 1848, the Associated Press.

D. Leave as is

3/5/2015Thursday

SWBAT . . .. . . explain visible phenomena using kinetic theory.. . . solve gas math problems.

HOMEWORK: Balloon in a Bottle Lab due tomorrow.

WARM-UP: Get out a blank piece of paper and title it, “Balloon in a Bottle Lab.”GRADING PROGRESS:Ch 12 Scratch HONORS: 100%Mag XCR: 0%Crushing Can Lab: 0%

Balloon in a Bottle Lab XCR opportunity

3/5/2015

* Take pictures of your bottle @ various stages of lab

* Make a PowerPoint with bottle pixgroup photo in goggles/aprons

* ppt is in addition to normal lab write-up

* all named & pictured group members get + up to 25% on lab grade

Please submit your 4th periods class response by email or in writing to room 16-2 by the end of 4th period today.

Math- Solving for Variable

Solve for x

7x + 11 = 25

A. -3B. -2C. 2D. 3

3/6/2015Friday

SWBAT . . .. . . explain visible phenomena using kinetic theory.. . . solve gas math problems.

HOMEWORK: ALL: Get caught up with your bookwork.HONORS: 14.4 all

WARM-UP: What is the relationship between # of gas molecules and gas pressure? Why?

GRADING PROGRESS:Mag XCR: 100%Crushing Can Lab: 20%

Dance is selling Chinese food $5candy apples! $2

Verbs are action words that describe PAST, PRESENT, or FUTURE actions.

The Rio Grande River will be running from Colorado to the Gulf of Mexico and forms the border between Texas and Mexico.

A. The Rio Grande River ranB. The Rio Grande River was runningC. The Rio Grande River runsD. Leave as is

3/9/2015Monday

SWBAT . . .. . . explain visible phenomena using kinetic theory.. . . solve gas math problems.

HOMEWORK: ALL: Do the whole Gas Math Problems Worksheet by hand on paper.

WARM-UP: What three laws are hiding within the combined gas law?

GRADING PROGRESS:Crushing Can Lab: 80%Balloon in a Bottle Lab: 0%

The crooked company wanted to hide ___________ motives from the public. A. it'sB. itsC. thereD. you're

3/10/2015Tuesday

SWBAT . . .. . . explain visible phenomena using kinetic theory.. . . solve gas math problems.

HOMEWORK: Study old stuff and new stuff for tomorrow’s ch 14 cumulative test.

WARM-UP: Title a blank piece of paper“CSA Standard 4 Scratch Paper” & Get started on the test. MOVE!

GRADING PROGRESS:Balloon in a Bottle Lab: 1%

Please send your class’ response by email or a written response to room 16-2 by the end of 4th period today.

Math- Order or Operations and Plugging

Q: If x = 3 and y = -2, then (x • y)=

A ) -6B) -1C) -1D) 6

3/11/2015Wednesday

SWBAT . . .. . . explain visible phenomena using kinetic theory.. . . solve gas math problems.

HOMEWORK: ALL: Ch 14 bw & ws packet due tomorrowHONORS: Ch 14 only honors test tomorrow

WARM-UP: Title a blank piece of paper“Ch 14 Cumulative Scratch”

GRADING PROGRESS:Balloon in a Bottle Lab: 20%

SCRATCH PAPER TIPSHow to Get Mr. Barnes to Give You Big Points

1. Write your question #’s.. Q#’s!

2. Show all your math steps, preferably the way Mr. Barnes showed you on the board.

3. For non-math questions, explain why the right answers are right and why the wrong answers are wrong.

4. For non-math questions, explain with properly-linked, complete science facts. CSF – link – CSF

5. When you have done all of the above, get a magazine, read one or more articles, STAY QUIET, and write down onto your scratch paper whatever comes into your mind as you read. NOTE: Magazine XCR gets less points than math & CSF’s.

Q: “Chewing gum while you sing doesn’t make much sense,” the reporter added.

A “Chewing gum while you sing doesn’t make much sense,

B ‘Chewing gum while you sing doesn’t make much sense’

C “Chewing gum while you sing doesn’t make much sense”,

D Leave as is

3/12/2015Thursday

SWBAT . . .. . . use molecular ideas to explain water’s physical properties

HOMEWORK: 15.1 all (reading notes, vocab flash cards, sxn assmt q’s)

WARM-UP:NORMAL: Get to work on homework.HONORS: Title a piece of paper “Ch 14 HONORS Scratch”

GRADING PROGRESS:Balloon in a Bottle Lab: 50%PHC 14 Cum SCR: 0%

Q: The square root of 124 is between

A: 10 and 11.

B: 11 and 12.

C: 12 and 13.

D: 13 and 14.  

NO TALKING

Chatty messes can not be allowed to happen again.You are obligated to work productively.

Control your behavior.

Headphones OKIt’s great if you love your job, but just remember that you don’t get paid for doing what you want to do. You get paid for doing what someone else wants you to do. You are not here to enjoy yourself. You are here to get a job done.

3/13/2015Friday

SWBAT . . .. . . use molecular ideas to explain water’s physical properties. . . explain the origin and effects of hydrogen bonding.

HOMEWORK: 15.2: pp 450 - 453: read, take notes, make vocabulary flash cards.

WARM-UP: What does it mean to say that water molecules are “polar”?

GRADING PROGRESS:Balloon in a Bottle Lab: 100%PHC 14 Cum SCR: 0%PHC 14-Only HONORS SCR: 0%

Q: A pool is 25 yards long. How long is it in feet?(1 yard = 3 feet)

A 75

B 50

C 9

D 8

3/16/2015Monday

SWBAT . . .. . . use molecular ideas to explain water’s physical properties. . . explain the origin and effects of hydrogen bonding.. . . explain the relationship between solute, solvent, and solution.

HOMEWORK: none (CAHSEE CHAOS)

WARM-UP: What is the relationship between solute, solvent, and solution?

GRADING PROGRESS:PHC 14 Cum SCR: 30%PHC 14-Only HONORS SCR: 0%

Q: When my family went to the Grand Canyon, my mother is scared I will get too close to the edge.

A: my mother will be scared I will get too close to the edge.B: my mother was scared I would get too close to the edge. C: since my mother was scared I would get too close to the edge.D: Leave as is

Think Pair Share 3/16/15

Question #1: What is hydrogen bonding? What causes it?

Question #2: What are some effects of hydrogen bonding being as strong as it is in water?

Question #3:What is an electrolyte? Is water an electrolyte? Why or why not?

3/17/2015Tuesday

SWBAT . . .. . . use molecular ideas to explain water’s physical properties. . . explain the origin and effects of hydrogen bonding.

HOMEWORK: none (CAHSEE CHAOS)

WARM-UP: Multiple people?: Title a blank piece of paper “Quiz Show Notes”One person?: Title a blank piece of paper “Quick Lab Page 448”

GRADING PROGRESS:PHC 14 Cum SCR: 35%PHC 14-Only HONORS SCR: 0%

3/18/2015Wednesday

SWBAT . . .. . . use molecular ideas to explain water’s physical properties. . . explain the origin and effects of hydrogen bonding.

HOMEWORK: none (CAHSEE CHAOS)

WARM-UP: Multiple people?: Title a blank piece of paper “Quiz Show Notes”(Use yesterday’s if you have one.)One person/very few people?: Prepare for grade conference/tutoring/re-takes

GRADING PROGRESS:PHC 14 Cum SCR: 60%PHC 14-Only HONORS SCR: 0%

3/19/2015Thursday

SWBAT . . .. . . use molecular ideas to explain water’s physical properties. . . explain the origin and effects of hydrogen bonding.

HOMEWORK: NORMAL: 15.2 Sxn Assmt except for #’s 11, 14, & 15HONORS: finish 15.2 (pp 454-457 all)

WARM-UP: Why is it a VERY bad idea to pour melted candle wax into a sink?

GRADING PROGRESS:PHC 14 Cum SCR: 70%PHC 14-Only HONORS SCR: 0%

3/20/2015Friday

SWBAT . . .. . . LEAPS!

HOMEWORK: none

WARM-UP: Get ready to LEAPS! (Take out a piece of paper and title it “LEAPS Notes”)GRADING PROGRESS:PHC 14 Cum SCR: 80%PHC 14-Only HONORS SCR: 0%

3/23/2015Monday

SWBAT . . .. . . figure out where they went wrong on the ch 14 exam.

HOMEWORK: Re-read pp 452 & 453. Draw 3 pictures: particles in salt water, particles in a mercury (II) chloride solution, particles in a glucose solution

WARM-UP: Get a head start on tonight’s homework. Figure 15.9 is a BIG help.

GRADING PROGRESS:PHC 14 Cum SCR: 70%PHC 14-Only HONORS SCR: 0%

3/24/2015Tuesday

SWBAT . . .. . . explain why any given material is or is not a conductor.HOMEWORK:

NORMAL: none HONORS: 15.3 all

WARM-UP: What is an electrolyte? What is the difference between a “strong” and a “weak” electrolyte?

GRADING PROGRESS:PHC 14-Only HONORS SCR: 17%

Na

Cl

Na

Na

Cl

Cl

NaNa

Cl

Cl

3/25/2015Wednesday

SWBAT . . .. . . explain why any given material is or is not a conductor.HOMEWORK: Study for

chapter 15 test!

WARM-UP: What is a conductor? What do you call a non-conductor?

GRADING PROGRESS:PHC 14-Only HONORS SCR: 33%

A

B

CD

A

B

C

D

3/26/2015Thursday

SWBAT . . .. . . kick the c-word out of the ch 15 test!

HOMEWORK: none. Get caught up if you’re behind, though.

WARM-UP: Title a piece of paper “Ch 15 Scratch”.

GRADING PROGRESS:PHC 14-Only HONORS SCR: 67%

Ch 15 Test Screen Questions 3/26/2015

If time permits, do some/all of the following on your scratch paper:

Q1: Tell me all you can about soap.

Q2: Draw a labeled, explained, particle-based diagram of the following:

a. A metal not conducting currentb. A metal conducting currentc. A strong, aqueous electrolyted. A weak, aqueous electrolytee. A strong, non-aqueous electrolytef. A non-electrolytic liquid

Done all you can? Get a magazine, read one or more articles, and write down, on your scratch paper, whatever comes into your head.

A

B

CD

A

B

C

D

4/6/2015Monday

SWBAT . . . . . . perform calculations invovling solution concentration.HOMEWORK:

ALL: Read 16.1. Take notes. Make vocab flash cards.HON: PrPr pg 477

WARM-UP: What is the relationship between solute, solvent, and solution? Give an example.

GRADING PROGRESS:PHC 14-Only HONORS SCR: 99%PHC 15-only mc: 99%phc 15-only scr: 80%Conductivity Demo Report = 0%

4/7/2015Tuesday

SWBAT . . . . . . explain why and how salt dissolves in water

HOMEWORK: ALL: 16.1 Sxn Assmt(but #7 is honors only)

WARM-UP: Why don’t oil and water mix?[Sharpen your pencil when done answering.]

GRADING PROGRESS:PHC 15-only mc: 100%phc 15-only scr: 99%Conductivity Demo Report = 0%

4/8/2015Wednesday

SWBAT . . . . . . explain why and how salt dissolves in water.. . . list and explain factors that affect solubility.

HOMEWORK: Read/notes/flash cards pp 480-481; TRY PrPr 8 & 9 pg 481

WARM-UP: What happens if you pour salt into a saturated salt water solution? Why?

GRADING PROGRESS:phc 15-only scr: 99%Conductivity Demo Report = 99%

4/9/2015Thursday

SWBAT . . . . . . explain why and how salt dissolves in water.. . . list and explain factors that affect solubility.. . . solve problems involving concentration.

HOMEWORK: warm-up packet for s2

WARM-UP: What is molarity?

GRADING PROGRESS:Conductivity Demo Report = 99%

https://josephkimes.wordpress.com/2012/06/08/the-dead-sea/

4/10/2015Friday

SWBAT . . . . . . list and explain factors that affect solubility.. . . solve problems involving concentration.

HOMEWORK: none.

WARM-UP: What kind of bond is there between O and H in an H2O molecule? Why isn’t it the other kinds?

GRADING PROGRESS:Conductivity Demo Report = 100%

electronegativity

2.1

3.5

3.5-2.11.4

d+

d-

d+