1. Do Now & Announcements Turn in Lab Work on properties of water review
Elements and Compounds Project due MON 10/5, TUES 10/6
Atoms Quiz Mon 10/5, Tues 10/6

2. Acids, Bases, and pH Demo Write down what you observed from the demo
Write down 1-2 inferences

3. Autoionization of Water
Water (H2O) can ionize and form two ions: H+ (or H3O+), hydronium
and OH-, hydroxide

4. Acids

5. Bases

6. Neutral Substances
Based on the types of ion that water can form, why do you think water is considered a neutral substance?

7. Buffers What are buffers? Why are they important? (ex.)
Solutions that resist big changes in pH
Why are they important? (ex.)
Don’t want internal body to be too acidic or too basic.
normal blood pH is tightly regulated between 7.35and 7.45.

8. pH Activity
You will test each substance twice, once with the liquid indicator and once with the pH strips.
Rinse out well plates and dry off lab benches when done.

9. Sample Vocab Card
Atom
Smallest, simplest unit of matter