Properties of Acids and Bases Acids Bases Taste sour Taste Bitter Turns blue litmus paper red Turns...

Properties of Acids and Bases•Acids •Bases

•Taste sour •Taste Bitter

•Turns blue litmus paper red •Turns red litmus paper blue

•Reacts with metals •Produces Hydroxide ions (OH-) in water

•Produces Hydrogen ions (H+) in water

•Feels Slippery

•Reacts with carbonates to produce CO2 gas

Acid, Base, Neutral, or Both (Acid and Base)

1. pH of 7 _______________________________2. ammonia _____________________________3. fluid in the stomach ____________________4. produces hydrogen gas __________________5. NaOH or KOH _________________________6. saliva in the mouth ______________________7. conduct electricity ______________________8. pH 0 – 6.9 ______________________________9. vinegar ________________________________10. pH 7 - 14 ______________________________11. HCl ___________________________________12. produce ions in water ______________________

Answers1. neutral 10. base2. base 11. acid3. acid 12. both4. acid5. base6. neutral7. both8. acid9. acid

Vocabulary1. An ________ is a compound that changes

color in the presence of an acid or base.2. This property of an acid can “eat away”

certain metals_____________3. The ________ is a series of numbers that

indicates the concentration of hydrogen ions in a solution.

4. A _______ is an ionic compound that forms from the reaction of an acid and a base.

5. At a pH near ________ stomach enzymes break down proteins.

6. During the neutralization process _______ and ________ is produced.

7. The process that breaks down complex molecules of food into smaller molecules is called________.

8. ____________ is the reaction between an acid and a base.

9. _________ digestion is a physical process in which large pieces of food are torn and ground into smaller pieces.

10. Most chemical digestion is completed in the ___.

Vocabulary Answers1. indicator2. corrosive3. pH scale4. salt5. 2 (two)6. salt and water7. digestion8. Neutralization9. Mechanical10. small intestines

pH ScaleRange 0 – 14Acids 0 – 6.9 (lower the number, stronger the acid)Bases 7.1 – 14 (higher the number, stronger the base)Neutral 7

Acid / Base Reactions Acids in water produce?

1. HCl

Bases in water produce?2. NaOH

Acids and bases (neutralization) produce?3. HCl + NaOH

Acid / Base Reaction Answers

1. H+ + Cl-

2. Na+ + OH-

3. H2O + Na+ + Cl-

More Practice!HCl + KOH HF LiOH HF + LiOH HBr KOH HCl + LiOH

AnswersHCl + KOH KCl + H2OHF H+ + F-

LiOH Li+ + OH-

HF + LiOH LiF + H2OHBr H+ + Br-

KOH K+ + OH-

HCl + LiOH LiCl + H2O