1 19 what acids & bases
TRANSCRIPT
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Launch: 1/19 Grab your binder and immediately take a seat!
Place launch paper on your desk.
Friday’s Quiz Data:
Today’s Objective: I can describe the properties of acids and bases.
90%
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Launch: 1/19 Grab your binder and immediately take a seat!
Place launch paper on your desk.
Friday’s Quiz Data:
Today’s Objective: I can describe the properties of acids and bases.
82%
![Page 3: 1 19 What Acids & Bases](https://reader030.vdocuments.us/reader030/viewer/2022032616/55a3b44c1a28ab4d0f8b469f/html5/thumbnails/3.jpg)
Launch: 1/19 Grab your binder and immediately take a seat!
Place launch paper on your desk.
Friday’s Quiz Data:
Today’s Objective: I can describe the properties of acids and bases.
80%
![Page 4: 1 19 What Acids & Bases](https://reader030.vdocuments.us/reader030/viewer/2022032616/55a3b44c1a28ab4d0f8b469f/html5/thumbnails/4.jpg)
Launch: 1/19 Grab your binder and immediately take a seat!
Place launch paper on your desk.
Friday’s Quiz Data:
Today’s Objective: I can describe the properties of acids and bases.
87%
![Page 5: 1 19 What Acids & Bases](https://reader030.vdocuments.us/reader030/viewer/2022032616/55a3b44c1a28ab4d0f8b469f/html5/thumbnails/5.jpg)
Launch: 1/19 Partner norms
10 minutes to fill out sheet
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Announcements Second-half of Unit #6: Acids & Bases
The semester ends on Friday! Progress report @ end of class
Missing assignments due Thursday 1/21
Lab make-ups on Wed during tutoring
Friday’s quiz Tomorrow’s lab
Unit #6 exam moved to Thursday 1/28
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January Calendar
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What are acids & bases?
Mr. Heffner 1/19/10
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What is a solution? A solution is…
a homogeneous mixture made up of a solute and a solvent Example: sugar and water
Non-example: sand and water
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What are acids and bases? Solutions can be classified as…
Acids pH < 7 taste sour
Ex: lemon juice burn skin turn litmus paper red
Bases pH > 7 taste bitter
Ex: soap feel slippery turn litmus paper blue
“pH scale”
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Examples
Is it an acid, a base, or neutral solution? Vinegar Water
Baking soda Drain cleaner HCl (hydrochloric acid)
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Foldable Use colored pencils to create a book about acids/
bases Front page: Title, name, block, date Acids
Page 1: Properties
Page 2: Examples
Bases Page 3: Properties
Page 4: Examples
Page 5 & 6: labeled pH scale
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Practice Questions Practice question worksheet
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Exit Slip
1. Which of the following is true about acids? a. they taste bitter b. they turn litmus paper blue c. they have a pH of greater than 7
d. they taste sour and turn litmus paper red
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Exit Slip 2. Unlike acids, bases
a. feel slippery and have pH values greater than 7 b. turn litmus paper red
c. taste sour and turn litmus paper blue d. are always dangerous because they can burn skin
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Exit Slip 3. Baking soda is an example of an
a. acid because it turns litmus paper red b. base because it has a pH of about 8.5
c. acid because it turns litmus paper blue d. base because it tastes similar to lemons
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Exit Slip 4. Which of the following solution is the most basic?
a. vinegar b. milk
c. soap d. drain cleaner
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Exit Slip 5. Which of the following solutions would have the
highest acidity? a. pH 11 b. pH 9 c. pH 5
d. pH 2
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Homework Finish practice questions