- Complete Reading Check p.155
- Complete Reading Check p.161
- Complete 5.1 Worksheet
The blog for Mr. Arocena's classes. Recorded here are assignments, quizzes, tests, projects and the current scores for all teams competing for the Arocena Cup. Occasionally I'll post something else too (most likely pertaining to education)
"It's not that I'm so smart, it's just that I stay with problems longer." - Albert Einstein
Wednesday, April 3, 2013
Science 9
This week's assignment:
Labels:
science 9,
science 9 assignment
Chemistry 11
Here's a video about the Mole
Khan Academy - The Mole & Avogadro's Number
This week's assignments:
Khan Academy - The Mole & Avogadro's Number
This week's assignments:
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Complete Practice Problems p.289 #1-2
Complete Practice Problems p.291 #3-4
Complete Practice Problems p.292 #5-6
Complete Practice Problems p.296 #7-8
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Complete Section 10.1 Assessment p.296 #9-15
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Practice Problems p.298 #16-17
Practice Problems p.299 #18-19
Practice Problems p.301 #20-21
Practice Problems p.301 #22-23
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10.2 Section Assessment p.303 #24-31
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Labels:
chemistry 11,
chemistry 11 assignment
Chemistry 12
This week's assignments so far:
Khan Academy - Acid Base Intro
- Complete Exercises #1-14 from pages 110, 112, 114, 115, 117, 119
Khan Academy - Acid Base Intro
Labels:
chemistry 12,
chemistry 12 assignment
Wednesday, March 13, 2013
Science 9
Today's assignment:
- Complete 4.1 Worksheets
- Complete 4.2 Worksheets
- Complete Reading Check p. 124
- Complete Reading Check p. 130
- Complete Reading Check p. 132
- Complete Reading Check p. 141
Labels:
science 9,
science 9 assignment
Science 8
Today's assignment
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Assignment (each worth 5)
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Ch11 Vocab (20)
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Reading Check p.417
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Reading Check p.420
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Reading Check p.424
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11.1 Worksheets (10 marks each)
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11.2 Worksheets (10 marks each)
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11.3 Worksheets (10 marks each)
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BONUS: Ch.11 Review p.436
(+10)
#1-13
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Labels:
science 8,
science 8 assignment
Chemistry 11
Today's assignment:
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Assignment
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Practice Problems p.193 #1-2
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Section 7.1 Assessment p.193 #3-11
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Practice Problems p.196 #12-13
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Section 7.2 Assessment p.199 #14-22
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Section 7.3 Assessment p.203 #23-29
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Section 8.1 Assessment p.216 #1-6
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Practice Problems p.220 #7-8
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Practice Problems p.225 #9-12
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Section 8.2 Assessment p.229 #13-22
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Section 8.3 Assessment p.236 #23-29
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Practice Problems p.239 #30-31
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Section 8.4 Assessment p.244 #32-38
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Labels:
chemistry 11,
chemistry 11 assignment
Chemistry 12
So far in Chemistry 12 we have been working on Unit 3 and I have assigned questions #1-69.
The lab I will collect from you hopefully before Spring Break (so Friday).
An explanation of the results today. It turns out that Copper (II) gets turned into Copper (I) in the presence of iodide ions so that explains why a lot of you got the bluish-green copper when burning the first precipitate.
Not sure how to explain the second precipitate though as Strontium should not have precipitated until the Carbonate/Phosphate was added. Although Maran and Julianna did have some strontium colour in their first precipitate (which shouldn't have happened as Strontium Iodide doesn't precipitate). So perhaps I just didn't add enough strontium to the original sample. Which means the Q for Strontium Phosphate/Carbonate was less than the Ksp so nothing precipitated.
Anyways, write your lab report based on your observations, not based on what was supposed to happen. Knowing what was supposed to happen might help you in your conclusion/discussion but use original observations to direct your answers.
The lab I will collect from you hopefully before Spring Break (so Friday).
An explanation of the results today. It turns out that Copper (II) gets turned into Copper (I) in the presence of iodide ions so that explains why a lot of you got the bluish-green copper when burning the first precipitate.
Not sure how to explain the second precipitate though as Strontium should not have precipitated until the Carbonate/Phosphate was added. Although Maran and Julianna did have some strontium colour in their first precipitate (which shouldn't have happened as Strontium Iodide doesn't precipitate). So perhaps I just didn't add enough strontium to the original sample. Which means the Q for Strontium Phosphate/Carbonate was less than the Ksp so nothing precipitated.
Anyways, write your lab report based on your observations, not based on what was supposed to happen. Knowing what was supposed to happen might help you in your conclusion/discussion but use original observations to direct your answers.
Labels:
chemistry 12,
chemistry 12 assignment
Thursday, March 7, 2013
Science 9
Today's assignment:
- Complete Reading Check p.124
- Complete Reading Check p.130
Labels:
science 9,
science 9 assignment
Chemistry 11
Today's assignment:
- Complete Practice Problems p.225 #9-11
- Complete 8.2 Section Assessment p.229 #13-22
Labels:
chemistry 11,
chemistry 11 assignment
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