1. Creating a Positive Learning Environment for Everyone
Be respectful of your classmates
Save conversation for clicker portions of lecture
Put cell phones in “airplane” mode
Turn off tablets
Close laptops

2. Friday Sections Smaller groups, more details in solving problems.
You must take an active role.
Textbook Ch. 2 and 3 HW due tomorrow (p. 12 of Lab Book lists the exact problems to be completed)

3. LON-CAPA Electronic Homework
Can access from course website:
Prelecture Assignment due Tuesday 9/5, 8 am
HW 1 Type 1 due Tuesday 9/5, 7:00 pm (Mondays)
Type 1 HW – “unlimited” attempts (99)
Type 2 HW – 5 attempts (Wednesdays)
Prelecture Assignments – 2 attempts - read the textbook sections first! (Tuesdays & Thursdays!)

4. Syllabus Page 13
Type 1 HW 1 Moved to Tuesday 7 pm

5. LON-CAPA Electronic Homework
Receive no credit after due date.
Individualized assignments.
Show them Lon-Capa!!!!!!!!!!!!!!!!!!!

6. Lectures Provide a “big picture” Lecture Syllabus Interactive
How do we think about “science”?
How do we solve a problem?
Lecture Syllabus
Page 10 of Lab Book
Interactive
I expect and encourage questions.
Participation expected through clickers.

7. Let’s Give it a Try… How has your first week been going?
Sulfur so good
I zinc I can, I zinc I can
Sodium difficult
Pretty boron
Oxygen Potassium

8. Clicker Points
Participation Points – answer at least 75% of the questions per lecture
0.5 points per lecture
Capped at 10 points (24 lectures w/ clickers)
Bonus Points – earn 0.1 points for every question you answer correctly
Starts Next Tuesday

9. Chemistry 101 Slower pace after next week
Office hours – 2026 Chemistry Annex
10-11am Tuesdays and Thursdays
By appointment

10. Chemistry 101 2021 Chemistry Annex (Chemistry Learning Center)
Walk in tutors
Office hours
Reference materials

11. General Advice…

12. To: emccarr2@illinois.edu
From:
I dont get problem 3
Srsly, plz help thx ~J

13. Email Advice Acknowledge instructor’s name. Put your name.
account if possible. (otherwise put netid after name)
Do not use “text message” code.
Put your section.
Do not erase the message I sent previously (the record).

14. To: emccarr2@illinois.edu From: jdoe25@illinois.edu
Hi Elise,
I am having trouble understanding problem #3 of the Additional Questions on pg. 23 of the Lab Book. How am I supposed to make my drawings for each measurement? Can you please give me some guidance? Thanks!
-Jane (jdoe25, ADM, Chem 101)

15. A Particle Story: Smelly Particles

16. Smelly Particles

17. Particulate Nature of Matter
Atom: smallest part of an element that is still that element (fundamental unit of which elements are composed).
Molecule: Two or more atoms joined and acting as a unit. (element or compound)

18. Clicker Question How many of the following are compounds?
S8, NO2, KCl, CH4, H2SO4
A) 1
B) 2
C) 3
D) 4
E) 5

19. Atomic Element

20. Molecular Elements

22. Compounds

23. Clicker Question… How many of the following are compounds?
S8, NO2, KCl, CH4, H2SO4
A) 1
B) 2
C) 3
D) 4
E) 5

24. Chemical Reaction

25. Chemical Change
A change in the fundamental components of the substance.
Create something new/different
Chemical changes are called reactions.

26. Macroscopic versus Microscopic

27. Physical Change
A change in one or more physical properties, but no change in the fundamental components.
Changes of State

28. Clicker Question
How many of the following are examples of a chemical change?
I. burning of wood
II. pulverizing (crushing) rock salt
III. dissolving of sugar in water
IV. melting a popsicle on a warm summer day
A) 0
B) 1
C) 2
D) 3
E) 4

29. Clicker Question Which of the following is a homogeneous mixture?
A) potting soil
B) sodium chloride (table salt)
C) pure water
D) oil and vinegar dressing
E) sports drink (like Gatorade)

30. Significant Figures
540,000
235.0
100.
1,230,400
0.0456
Non-zero digits and “middle” zeros are significant.
Beginning zeros are never significant.
End zeros significant with a decimal.