Phy Sci

Question 1

What does a base turn red litmus paper into?

Answer 1

blue

Turns red litmus paper blue

Question 2

What does an acid turn blue litmus paper into?

Answer 2

red

Turns blue litmus paper red

Question 3

What can acids do?

Answer 3

burn

Can burn

Question 4

What do acids contain?

Answer 4

hydronium ions

Contains hydronium ions

Question 5

What do bases contain?

Answer 5

hydroxide ions

Contains hydroxide ions

Question 6

What does a base taste like?

Answer 6

bitter

Tastes bitter

Question 7

Can acids be strong or weak?

Answer 7

yes

Can be strong or weak

Question 8

What does an acid taste like?

Answer 8

sour

Tastes sour

Question 9

What does a base feel like?

Answer 9

slippery

Feels slippery

Question 10

Are acids corrosive?

Answer 10

yes

Corrosive

Question 11

List at least 3 bases.

Answer 11

Antacid, drain cleaner, bleach

Antacid, drain cleaner, bleach

Question 12

List at least 3 acids.

Answer 12

Acetic acid (found in vinegar), hydrochloric acid, sulfuric acid

Acetic acid (found in vinegar), hydrochloric acid, sulfuric acid

Question 13

What are 3 uses for household bleach?

Answer 13

To kill bacteria, to whiten clothes, to kill viruses, NOT to neutralize stomach acid

To kill bacteria, to whiten clothes, to kill viruses, NOT to neutralize stomach acid

Question 14

What will putting lemon juice on a piece of cut apple do?

Answer 14

Prevent the fruit from turning brown

Example: Lemon juice is acidic and can prevent oxidation in apples.

Question 15

What does a disinfectant do?

Answer 15

Kills bacteria and viruses

Question 16

What does pH measure?

Answer 16

The concentration of hydronium ions

Question 17

What happens when a solution of an acid reacts with a solution of a base?

Answer 17

Hydronium ions react with hydroxide ions to form water

Question 18

What is a substance that either contains hydroxide ions (OH-) or reacts with water to form hydroxide ions?

Answer 18

A base

Question 19

What are salts?

Answer 19

Ionic compounds formed with acids and bases react.

Question 20

In water, what does a strong acid do?

Answer 20

Ionizes completely

Question 21

What does an antacid do to excess stomach acid?

Answer 21

Neutralizes it

Question 22

What can marinades containing acids be used for?

Answer 22

To tenderize meat

Question 23

What type reaction occurs between an acid and a base?

Answer 23

A neutralization reaction

Question 24

Why are soaps and detergents such good cleaners?

Answer 24

They can dissolve in both water and oil.

Example sentence: Soap molecules have a hydrophilic end that is attracted to water and a hydrophobic end that is attracted to oil.

Question 25

What is reached in a titration of a strong acid with a strong base when the original amount of acid equals that amount of added base?

Answer 25

the equivalence point ## Footnote Additional information: At the equivalence point, the moles of acid are equal to the moles of base.

Question 26

What conducts electricity when dissolved in water?

Answer 26

An electrolyte ## Footnote Example sentence: Salts are examples of electrolytes that conduct electricity in water.