1. HAPPY NEW YEAR! Room C215 Mr. Barnes Chemistry
Returning students: Same seats as first semester
New students / students from other periods:
Sit in one of the red “island” desks in the middle of the room

2. Chemistry
Monday 1/9/2017
HOMEWORK: Finish crossword puzzle rough draft
(blank puzzle, clues, answer key, 15+ chemistry vocab words)
WARM-UP: Get out a blank sheet of paper.
Name, period, and date in upper right hand corner
Title = “S2 5 Week Warm-Ups”
Skip a line. Write today’s date again.
Copy the following question and answer it with one or more complete sentences that convey complete science facts.
“Q: What is the relationship between atoms, electrons, molecules, protons, and neutrons?

3. Chemistry
Tuesday 1/10/2017
HOMEWORK: Finish crossword puzzle final draft
(blank puzzle, clues, answer key, 15+ chemistry vocab words AND make it look nice)
WARM-UP: Get out yesterday’s warm-up paper.
Skip a line after yesterday’s warm-up.
Write today’s date on the next line.
On a new line, copy the following question.
On a new line, answer the question with one or more complete sentences that convey complete science facts.
“Q: Compare and contrast ionic, metallic, and covalent bonds.”
STAMPS: none today. I hope you enjoyed your three solid weeks of no chemistry homework.
Done with the warm-up? Get started on the homework.

4. I’ve put the original of this in the bookwork answers binder.

5. No drinks other than water. Finish it outside before you come in.
No food.
No gum.
No drinks other than water.
Finish it outside before you come in.

6. Chemistry Wednesday 1/11/2017
HOMEWORK: read & take notes pages
Do Practice Problems #1 & #2. (Self-correct w/answers in back of book.)
WARM-UP: An atom is made of nine protons, eleven neutrons, and ten electrons. What can you tell me about it?
STAMPS: No stamps today, BUT, the S1 Chemistry Crossword Puzzle is due.
Done with the warm-up? Get started on the homework.

7. An atom is made of nine protons, eleven neutrons, and ten electrons
An atom is made of nine protons, eleven neutrons, and ten electrons. What can you tell me about it?

8. Chemistry Thursday 1/12/2017 HOMEWORK: none tonight.
WARM-UP: Translate this chemical equation:
Na(s) + Cl2(g)  NaCl(cr) + heat
STAMPS: reading notes pgs Practice Problems #1 & #2.
Done with the warm-up? Read ahead in You’re going to have to do it soon, so you might as well.

10. Chemistry Friday 1/13/2017 (gulp.)
HOMEWORK: See something? Say something!
WARM-UP: Translate the following into a chemical equation: Hydrogen gas exothermically combines with oxygen gas to become water vapor.
STAMPS: no bookwork to stamp today.
Done with the warm-up? Read ahead in You’re going to have to do it soon, so you might as well.

12. Hydrogen gas exothermically combines with oxygen gas to become water vapor.
H2(g) + O2(g)  H20(g) + heat

13. Hydrogen gas exothermically combines with oxygen gas to become water vapor.
H2(g) + O2(g)  H20(g) + heat

14. Hydrogen gas exothermically combines with oxygen gas to become water vapor.
H2(g) + O2(g)  H20(g) + heat

15. Hydrogen gas exothermically combines with oxygen gas to become water vapor.
H2(g) + O2(g)  H20(g) + heat

16. Crossword Puzzle RED INK Abbreviations
RD = rough draft FD = final draft
BP = blank puzzle (empty squares with word starts)
CLUE = clue list
KEY = answer key (puzzle w/letters in boxes)

17. Chemistry
Tuesday 1/17/2017
HOMEWORK: none tonight – almost certainly tomorrow night. HONORS see bulletin below.
WARM-UP: Translate the following into English:
Fe(s) + O2(g)  Fe2O3(s)
STAMPS: no bookwork to stamp today. Soon. Soon.
Done with the warm-up? Read & work ahead in You’re going to have to do it soon, so you might as well.
HONORS: We’re not going to do 11.3 in class, but it will be on the test. Work ahead through all of ch 11 so that you’re ready to answer 11.3 questions when the test hits.

18. Translate the following into English:
Fe(s) + O2(g)  Fe2O3(s)
Iron metal reacts with oxygen gas to produce iron (III) oxide.
Why iron (III) oxide and not just iron oxide?
Oxygen is in group 6A
 An oxygen atom wants to gain 2 electrons
 An oxygen atom becomes an O2- ion
If there are three O’s in Fe2O3, then that’s a total charge of 6-
Since ionic materials need to be neutral,
The total charge on the iron must be 6+
There are two iron atoms,
So each iron atom must have a 3+ charge
(+3 x 2) + (-2 x 3) = 0
The Roman numeral says the positive charge on the metal.

19. Chemistry Wednesday 1/18/2017
HOMEWORK: Read pgs Do Practice Problems #’s 3-6 to the best of your ability.
WARM-UP: What does and doesn’t happen to atoms during chemical reactions?
STAMPS: late PrPr #1 & #2 (OK due to mathiness)
Done with the warm-up? Get started on the homework.

20. Chemistry
Thursday 1/19/2017
HOMEWORK: Section Assessment. Check answers using power point in student vault.
HONORS: Remember that you need to work ahead so you can get 11.3 done all on your own in time for the test.
WARM-UP: How do you know when an equation is balanced?
STAMPS: 11.1 reading notes pgs Practice Problems #’s 3-6.
Done with the warm-up? Get started on the homework.

21. Chemistry
Friday 1/20/2017
HOMEWORK: Re-visit any 11.1 practice problems & section assessment questions you have “?’s” for.
HONORS: Do as much of 11.2 as you possibly can.
WARM-UP: What are the steps in balancing a chemical equation?
STAMPS: section assessment #’s 7-12
Done with the warm-up? Read and take notes in It will be assigned soon.

22. Chemistry
Friday 1/20/2017
HOMEWORK: Re-visit any 11.1 practice problems & section assessment questions you have “?’s” for.
HONORS: Do as much of 11.2 as you possibly can.
WARM-UP: What are the steps in balancing a chemical equation?
STAMPS: section assessment #’s 7-12
Done with the warm-up? Read and take notes in It will be assigned soon.

23. Equation Balancing Steps
1. List the elements – in the same order – under the reactant side and under the product side.
2. Do an atom count. #’s equal? If yes, go to step #5. If not . . .
3. Pick the unbalanced element that occurs in the least number of formulas. Increase a coefficient to make more of it where it’s needed.
4. Go to step #2.
5. If you can divide all the coefficients by the same whole number, do so.

24. Chemistry Monday 1/23/2017 HOMEWORK:
ALL STUDENTS: read & take notes.
HONORS ONLY: Also do all practice problems #’s
WARM-UP: Compare and contrast coefficients and subscripts.
STAMPS: Any 11.1 questions (practice problems, section assessment)
Done with the warm-up? Do the HW, work on the cardboard disc reactions worksheet, or forge ahead into the SP book.

25.  2C8H O2 16CO2 +18H2O

26. Chemistry Tuesday 1/24/2017 HOMEWORK:
ALL STUDENTS: Read instructions for part A of tomorrow’s lab. Dress for lab tomorrow (no contacts, no sandals, etc.)
HONORS ONLY: Section Assessment. Check answers using power point in student vault as usual.
WARM-UP: What does the expression “12C6H12O6” indicate?
STAMPS: reading notes (all students), 11.2 practice problems #’s (honors only).
Done with the warm-up? Do the HW, work on the cardboard disc reactions worksheet, or forge ahead into the SP book.

27.  C6H12O6

28.  12C6H12O6

29. Chemistry Wednesday 1/25/2017
HOMEWORK: Read procedure for parts B & C.
WARM-UP: None. Just get goggles & aprons on.
STAMPS: I will stamp 11.2 section assessment soon for honors and those seeking XCR . . .
Done with the warm-up? Do the HW, work on the cardboard disc reactions worksheet, or forge ahead into the SP book.

30. Chemistry Thursday 1/26/2017 HOMEWORK:
ALL STUDENTS: Read procedure for parts B & C. Dress for lab tomorrow. Today we talk about the lab, tomorrow we do the lab.
HONORS: Do as much of 11.3 as you can. Test early next week.
WARM-UP: What material will be collected in an upside-down container in part C of the lab? Why?
STAMPS: section assessment
Done with the warm-up? Do the HW, work on the cardboard disc reactions worksheet, or forge ahead into the SP book.

31. Thursday 1/26: Talk about the lab procedure
Friday 1/27: DO the lab
Monday: Discuss lab results & post-lab questions
Tuesday: Lab due / Ch 11 test
Wednesday: Ch 11 packet due (notes, bookwork, worksheets)

32. Chemistry Friday 1/27/2017 HOMEWORK:
ALL STUDENTS: Answer all the questions on the lab worksheet. Lots of it is done on separate paper. Do it all. Soft due date = Tuesday, the day of the ch 11 test.
HONORS: Finish 11.3
WARM-UP: Goggle & apron up. Get out your lab worksheet and something to write with. Put your backpack under the whiteboard OR on/underneath a red desk.
STAMPS: none today (lab)
Waiting around? Download & install the Kahoot! app on your phone if you have one. We’ll be using it soon . . .

33. Chemistry
Monday 1/30/2017
HOMEWORK: Chapter 11 test tomorrow. Study. Lab also due (soft due date )
WARM-UP: What is the only thing you’re allowed to change when balancing a chemical equation? Why?
STAMPS: Any 11.3
Waiting around? Download & install the Kahoot! app on your phone if you have one. We’ll be using it soon . . .

34. Chemistry
Tuesday 1/31/2017
HOMEWORK: Chapter 11 packet due tomorrow (all ch 11 bookwork, lecture notes, worksheets)
WARM-UP: Answer doc title = “Chem Ch 11”
Scratch paper title = “SCR 11”
STAMPS: Any 11.3 – BEFORE TEST!
Waiting around? Download & install the Kahoot! app on your phone if you have one. We’ll be using it soon . . .

35. “Form” = Version
Your form is indicated by your red test packet #.
Your red test packet # should be the same as your seat #.
If your test # is this then your form # is this:
1, 6, 11, 16, 21, 26, 31, 36 = Form 1
2, 7, 12, 17, 22, 27, 32, 37 = Form 2
3, 8, 13, 18, 23, 28, 33, 38 = Form 3
4, 9, 14, 19, 24, 29, 34, 39 = Form 4
5, 10, 15, 20, 25, 30, 35, 40 = Form 5

36. Chemistry Chapter 11 Screen Questions
given 1/31/2017
1. Why do chemists feel the need to balance chemical equations?
2. Compare and contrast coefficients and subscripts.
3. A synthesis reaction is like a marriage of people or a merger of corporations. What are decomposition, single displacement, and double displacement like?
4. Write a balanced equation for when iron (III) chloride forms from its elements.
5. Write a balanced equation for when octane (C8H18) combusts in the presence of oxygen gas.
6. Write a net ionic equation for when hydrocholoric acid reacts aqueously with barium hydroxide. Explain your steps.

37. Chemistry Wednesday 2/1/2017
HOMEWORK: read/take notes pgs 287 – Practice Problems #’s 1 & 2 only
WARM-UP: Gather together your bookwork, worksheets, and lecture notes for chapter 11. Stand by for packet list . . .
STAMPS: Only w/lateness excuse. Test was yesterday, folks.
Waiting around? Get started on the homework. 

38. Chapter 11 Packet List 11.1 notes, day one N H
due 2/1/2017
11.1 notes, day one N H
11.1 Practice Problems #’s 1 & 2 N H
11.1 notes, day two N H
11.1 Practice Problems #’s N H
11.1 Section Assessment (#’s 7-12) N H
11.2 reading notes N H
11.2 Practice problems (#’s 13-21) H
11.2 Section Assessment (#’s 22-27) H
11.3 reading notes H
11.3 Practice Problems (#’s 28 & 29) H
11.3 Section Assessment (#’s 30-35) H
Cardboard Disc Reactions Worksheet N H
Cardboard Disc Reactions lecture notes N H
SP Book equation balancing problems (xcr)
Anything else I forgot?

39. Chemistry
Thursday 2/2/2017
HOMEWORK: none tonight get that lab done, though, if not done already!
WARM-UP: Each carton of oreos contains six bags of oreos. Each bag contains eight cookies. Each cookie has two wafers and a white layer in between them. How many wafers are there in four cartons of oreos?
STAMPS: reading notes pgs 287 – Practice Problems #’s 1 & 2 only. Vocab term definitions from pg 314/glossary.
Waiting around? Work on your lab.

40. Chemistry
Friday 2/3/2017
HOMEWORK: front side of molar mass worksheet – IN PENCIL!
WARM-UP: How much cheese will be needed to make burgers from 20 pickles if we use 5 pickles and 2 slices of cheese per burger?
STAMPS: math mercy stamps for 10.1 practice problems (?)
Done with the warm-up? Get the molar mass worksheet if you don’t have it already and get to work on the front.

41. Chemistry Monday 2/6/2017 HOMEWORK: none
WARM-UP: How many water molecules are there in one mole of water? How many in two moles?
STAMPS: (If I were stamping, I’d stamp the front side of molar mass worksheet, but the day is short )
Done with the warm-up? Read the rest of 10.1.

42. 1 mole =
6.022 x 1023 molecules
2 moles =
12 x 1023 molecules
1.2 x 1024 molecules

43. Chemistry
Tuesday 2/7/2017
HOMEWORK: 10.1: finish reading/taking notes; Practice Problems #’s 3-8.
WARM-UP: How many moles is 6 x 1023 molecules of water? How many moles is 1.8 x 1024 molecules?
STAMPS: Just period 4 “GPA” sheet (goal plan action)
Done with the warm-up? Get started on the homework.

44. How many moles is 1.8 x 1024 molecules?
0.3
6 ) 1.8
1.8 x 1024 molecules 1
mole x 1
6 x 1023
molecules
= 0.3 x molecules
= 0.3 x 101 molecules
= 3 x 100 molecules
= 3 molecules

45. Chemistry Wednesday 2/8/2017 HOMEWORK: 10.1 Section Assessment
WARM-UP: What is the formula of calcium phosphide? How about iron (III) nitrate? Show your work.
STAMPS: reading notes, day Practice Problems #’s 3-8.
Done with the warm-up? Get started on the homework.

46. --------------------------- 6+ 6- Ca3P2
Calcium phosphide
Ca in 2A  loses 2e-  Ca2+
P in 5A  gains 3e-  P3-
Ca2+ P3-
Ca2+
Ca3P2
 OCTET
RULE!
 CHARGE
BALANCE

47. Iron (III) = Fe3+ (Roman # tells +charge)
Iron (III) nitrate
Iron (III) = Fe3+ (Roman # tells +charge)
“nitrate” = NO3- (pg 257/search engine)
Fe3+ NO3-
NO3-
Fe(NO3)3 `

48. 1. Octet rule/etc.  Charge on each ion
2. How many of each ion  neutral?

49. Ionic Compound Formulas
(ch 7 / ch 9 REVIEW!)
1. Is it even ionic? Ionic compound = metal + nonmetal
(Metals are found to the left of the metalloid staircase on the PT.)
2. Ionic charges. Use pages 257, 255, and/or, where applicable, the octet rule to determine what charge and formula each ion has.
Octet rule: Atoms either lose e- to go down to zero or
gain e- to go up to eight
3. Charge balance. Use the criss-cross rule to figure out how many of each ion goes into one formula unit.
Amount of plus charge should equal amount of minus charge.
If criss-cross gives you subscripts that can both be divided by the same whole number, do it.

50. Chemistry
Thursday 2/9/2017
HOMEWORK: read & take notes pgs ; do Practice Problem #’s 16-19
WARM-UP: How many moles is 3.6 x 1027 molecules of oxygen gas?
STAMPS: Section Assessment (#’s 9-15)
Done with the warm-up? Get started on the homework.

51. How many moles is 3.6 x 1027 molecules?
0.6
6 ) 3.6
3.6 x 1027 molecules 1
mole x 1
6 x 1023
molecules
= 0.6 x moles
= 0.6 x 104 moles
= 6 x 103 moles

52. Chemistry
Friday 2/10/2017
HOMEWORK: 10.2: read & take notes pgs Do Practice Problems, #’s
WARM-UP: What is the molar mass of Cu(NO3)2? What is the mass of twenty moles of copper (II) nitrate?
STAMPS: reading notes, day 1; PrPr, #’s 16-19
Done with the warm-up? Get started on the homework.

53. Cu(NO3)2:
Cu = 1 x = 64
N = 2 x = 28
O = 6 x = 96
188 g/mol
What is the mass of 20 moles of copper (II) nitrate?
20 moles
188 g
188
x 20
3760 x
= 3760 g 1 1
mole

54. Chemistry Tuesday 2/14/2017 HOMEWORK: 10.2 Section Assessment
WARM-UP: What is STP? How much space does a mole of gas occupy at STP?
[This is the last WUp of the 5-Week packet, btw!]
STAMPS: 10.2: reading notes pgs Practice Problems #’s
Done with the warm-up? Get started on the homework. No. Seriously. Stop playing on your phone. Stop chatting with your neighbors. Get started on the homework. You’re not getting paid units to goof off. That’s how workers get fired.

56. Chemistry Wednesday 2/15/2017
HOMEWORK: reading notes, practice problems (HONORS ONLY!)
WARM-UP: Take out a brand new sheet of paper. NPD in URHC. Title = “10 Week Warm-Up Packet”. Skip a line. Write today’s date again. Copy the following question and answer it with complete sentences:
Q: What is given in grams per mole? What is given in liters per mole? What is given in molecules per mole?
STAMPS: Section Assessment (#’s 24-31)
Done with the warm-up? Get started on the homework. No. Seriously. Stop playing on your phone. Stop chatting with your neighbors. Get started on the homework. You’re not getting paid units to goof off. That’s how workers get fired.

57. Chemistry
Thursday 2/16/2017
HOMEWORK: section assessment (HONORS ONLY!)
WARM-UP: When is the quantity “22.4 L/mol” used?
STAMPS: reading notes, practice problems (HONORS ONLY/XCR)
Done with the warm-up? Get started on the homework. No. Seriously. Stop playing on your phone. Stop chatting with your neighbors. Get started on the homework. You’re not getting paid units to goof off. That’s how workers get fired.

58. 22.4 L/mol is used . . .
to convert from moles to liters
or from liters to moles
but only for gases
and only if the gas is at STP:
T = zero Celsius
P = 14.7 psi

59. UNIT CONVERSION PRACTICE:
FOR EVEN MORE
UNIT CONVERSION PRACTICE:
PHC ch 10 Assessment, pg 315:
Q#’s 52, 53, 54, 58, 59, 60, 62
Answers are in pdf in student vault.
SP Book, chapter 8:
Sections 8:1, 8:2, 8:4, 8:5, 8:6, 8:7, 8:8

60. Chemistry Friday 2/17/2017 HOMEWORK: none
WARM-UP: How many moles of methane are there in a liter trash bag at STP?
STAMPS: section assessment (HONORS ONLY/XCR)
Done with the warm-up? Work ahead on the unit conversion worksheet. Done with that? Do some of the Ch 10 Assessment problems I told you about yesterday. Done with that? Work in the parts of the SP Book I mentioned. (If you didn’t take a picture with your phone, look in my binder on the front table.)

61. How many moles of methane are there in a 156.8 liter trash bag at STP?x
= mol 7 7 1
22.4 L
22.4 ) 156.8

62. EVENTUALLY Chapter 10 Packet List Due ??/??/???? 10.1 Reading notes
10.1 Practice Problems
10.1 Section Assessment
Scientific Notation lecture notes
Molar Mass Worksheet
Period 4 required: Goal-Setting/Achieving Worksheet
EVENTUALLY

63. Chemistry
Tuesday 2/21/2017
HOMEWORK: Ch 10-only CFA (quiz) Friday WILL count toward your grade. Study. Re-confront. Troubleshoot.
WARM-UP: How many moles is 3.6 x 1022 molecules of chloroform (CHCl3)? How many grams is it?
STAMPS: misc late/xcr
Done with the warm-up? Work ahead on the unit conversion worksheet. Done with that? Do some of the Ch 10 Assessment problems I told you about the other day. Done with that? Work in the parts of the SP Book I mentioned. (If you didn’t take a picture with your phone, look in my binder on the front table.)

64. How many moles is 3. 6 x 1022 molecules of chloroform (CHCl3)
How many moles is 3.6 x 1022 molecules of chloroform (CHCl3)? How many grams is it?
3.6 x 1022 molecules 1
mol x
= mol
0.6 x 10-1 1
6 x 1023
molecules
= mol
6.0 x 10-2
120 g
6.0 x 10-2 mol x
= g
720 x 10-2
mol 1 1
= g
7.2 x 100
CHCl3: C H Cl
= 1
= 3
x 12.01 x
x 35.45 = = =
119.37
g/mol

65. Chemistry Wednesday 2/22/2017 Mr. Barnes was on a field trip today.
Judy Washington substituted for him. She said the day went well.
She distributed and collected the Ch 10 Crossword Puzzle.
People who got work done on it and turned it in before the end of the period were entitled to stamps. Anyone else would need a valid, documented excuse to explain why they didn’t get work done on it and turn it in before leaving the room that day.

66. Chemistry
Thursday 2/23/2017
HOMEWORK: Ch 10 CFA tomorrow. Study. Re-confront.
WARM-UP: Find my home page on hhscougars.org. Go down to the bottom and open the HUD power point. Find the slide after this one. Correct your crossword from yesterday.
STAMPS: n/a
Done with the warm-up? Find the unit conversion worksheet power point in my chemistry power points page. Open it (in slideshow mode) and click through it until you get to the last worksheet problem we did together. Get out your worksheet and try the rest of the problems. Don’t click through to the answer to a problem until you’ve tried to work it out first!

68. LAST SLIDE