ab c d e f do now – write down the given descriptions. draw the picture that matches. 1. a pure...

A B C D E F Do Now – Write down the given descriptions . Draw the picture that matches. 1. A pure substance – molecules only 2. Mixture – molecules and compounds

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Title: Acid and Base Demo L.O. SWBAT determine if a solution is an acid, base, or neutral.

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Page 1: AB C D E F Do Now – Write down the given descriptions. Draw the picture that matches. 1. A pure substance – molecules only 2. Mixture – molecules and compounds

A B

C D

E F

Do Now – Write down the given descriptions. Draw the picture that matches.1. A pure substance – molecules only

2. Mixture – molecules and compounds

Due: Remediation

Today’s Homework: USA TestPrep Textbook 409 & 410 #1-12, 411 #1-6

Announcement: Happy Thanksgiving! Enjoy your 5 day weekend!

Page 3: AB C D E F Do Now – Write down the given descriptions. Draw the picture that matches. 1. A pure substance – molecules only 2. Mixture – molecules and compounds

Title: Acid and Base DemoL.O. SWBAT determine if a solution

is an acid, base, or neutral.

Page 4: AB C D E F Do Now – Write down the given descriptions. Draw the picture that matches. 1. A pure substance – molecules only 2. Mixture – molecules and compounds

ACIDS• Form Hydrogen

(H+) ions in water

• Taste Sour

• React with metals.

Page 5: AB C D E F Do Now – Write down the given descriptions. Draw the picture that matches. 1. A pure substance – molecules only 2. Mixture – molecules and compounds

BASES• Forms

Hydroxide (OH-) ions in water

• Taste Bitter

• Feels Slippery

Page 6: AB C D E F Do Now – Write down the given descriptions. Draw the picture that matches. 1. A pure substance – molecules only 2. Mixture – molecules and compounds

Neutral• Not an acid or base.

• Water (H2O)

• H+ ions = OH- ions

Page 7: AB C D E F Do Now – Write down the given descriptions. Draw the picture that matches. 1. A pure substance – molecules only 2. Mixture – molecules and compounds

Is it an Acid or Base?• Forms OH- ions.

• Feels Slippery.

• Tastes Sour.

• Reacts with metals.

• Tastes Bitter.

• Forms H+ ions

ACIDBASE

BASE

ACID

BASE

ACID

Page 8: AB C D E F Do Now – Write down the given descriptions. Draw the picture that matches. 1. A pure substance – molecules only 2. Mixture – molecules and compounds

IndicatorA compound that changes color in the

presence of an acid or a base.

Page 9: AB C D E F Do Now – Write down the given descriptions. Draw the picture that matches. 1. A pure substance – molecules only 2. Mixture – molecules and compounds

Natural indicators• There are natural

indicators for acids and bases, and we may find them in our kitchen or garden!

• Red rose flowers

• Bougainvillea flowers

• Red cabbage

• Blue berries

Page 10: AB C D E F Do Now – Write down the given descriptions. Draw the picture that matches. 1. A pure substance – molecules only 2. Mixture – molecules and compounds

ACIDSLitmus Paper

• Blue Red

Bromthymol Blue

• Yellow

Cabbage Juice

• Pink/Red

Page 11: AB C D E F Do Now – Write down the given descriptions. Draw the picture that matches. 1. A pure substance – molecules only 2. Mixture – molecules and compounds

BASESLitmus Paper

• Red Blue

Bromthymol Blue

• Blue

Cabbage Juice

• Blue/Green

Page 12: AB C D E F Do Now – Write down the given descriptions. Draw the picture that matches. 1. A pure substance – molecules only 2. Mixture – molecules and compounds

Neutral Solutions Litmus Paper

• No Change

Bromthymol Blue

• Green

Cabbage Juice

• Purple

Page 13: AB C D E F Do Now – Write down the given descriptions. Draw the picture that matches. 1. A pure substance – molecules only 2. Mixture – molecules and compounds

pH Scale:

BaseAcid Neutral

Measures the strength of acids and bases.

Page 14: AB C D E F Do Now – Write down the given descriptions. Draw the picture that matches. 1. A pure substance – molecules only 2. Mixture – molecules and compounds

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