Chapter 3 Section 2

Question 1

T or F: The sugar in kool-aid is an example of a solute.

Answer 1

True

Question 2

The substance that does the dissolving in a solution

Answer 2

Solvent

Question 3

The most common kind of solvent is ______.

Answer 3

Water

Question 4

An _____ is a substance that tastes sour, reacts with metals and carbonates, and turns blue litmus paper red.

Answer 4

Acid

Question 5

T or F: Acids are compounds.

Answer 5

T

Question 6

Compounds that share some characteristic properties

Answer 6

Acids

Question 7

_____ fruit are acidic.

Answer 7

Citrus

Question 8

What are 4 citrus fruits that are good examples of being acidic?

Answer 8

1. grapefruits
2. Oranges
3. Limes
4. Lemons

Question 9

Acids react with certain metals to produce _____ gas.

Answer 9

Hydrogen

Question 10

What metals react with acids to produce hydrogen gas?

Answer 10

Magnesium
Zinc
Iron

Question 11

When metals react with acids, what happens to the metals?

Answer 11

The seem to disappear in the solution

Question 12

When metals disappear in acidic solutions, causes acids to be described as ______.

Answer 12

Corrosive

Question 13

What does “corrosive” mean?

Answer 13

Eat away at other materials

Question 14

Acids also react with ____ ions in a characteristic way.

Answer 14

Carbonate

Question 15

An ____ is an atom or group of atoms with an electric charge.

Answer 15

Ion

Question 16

Carbonate ions contain ___ and _____ atoms bonded together

Answer 16

Carbon and Oxygen

Question 17

What kind of overall charge does a carbonate ion carry?

Positive or Negative

Answer 17

Negative

Question 18

What happens when acids react with carbonate compounds?

Answer 18

A gas forms

Question 19

Scientists who study the earth are called

Answer 19

Geologists

Question 20

Geologists use the reaction of acids with carbonates to identify _____.

Answer 20

Limestone

Question 21

Two organisms that live in the ocean and are forms of limestone.

Answer 21

Coral Rock

Chalk

Question 22

Litmus is an example of an ________, a compound that changes color when in contact with an acid or a base.

Answer 22

Indicator

Question 23

Vinegar and ______ juice turn blue litmus paper red.

Answer 23

Lemon

Question 24

Acids always turn litmus paper _____.

Answer 24

Red

Question 25

Hydrangea flowers are natural indicators. They may range in color from bright pink to blue, depending on the _____ of the soil in which the bush grows.

Answer 25

Acidity

Question 26

Ascorbic acid is also known as

Answer 26

Vitamin C

Question 27

Oranges and tomatoes contain ______ acid.

Answer 27

Ascorbic

Question 28

______ acid - which is needed for healthy cell growth - is found in green leafy vegetables.

Answer 28

Folic

Question 29

Acid in the stomach helps to digest ______.

Answer 29

Protein

Question 30

During exercise, ____ acid builds up in hard-working muscles.

Answer 30

Lactic

Question 31

A concentrated acid can ____ a hole in metal, cloth, skin, wood, and other materials

Answer 31

Burn

Question 32

____ are another group of compounds that can be identified by their common properties and taste bitter, feel slippery, and turn red litmus paper blue.

Answer 32

Bases

Question 33

These are often described as the opposites of acids.

Answer 33

Bases

Question 34

T or F: Bases do not have reactions with metals.

Answer 34

True

Question 35

_____ soda reacts with acids to produce CO2 gas in baked goods making them light and fluffy.

Answer 35

Baking

Question 36

In solution, bases sometimes look like _____ or may be ______white.

Answer 36

Water | Cloudy

Question 37

Strong bases can ___ your skin

Answer 37

Burn

Question 38

T or F: ___ and calcium carbonate help ease effects of too much stomach acid.

Answer 38

Bases

Question 39

_____ make bubbles when in contact with metal.

Answer 39

Acids

Question 40

The one similarity between acids and bases is that:

Answer 40

They both turn litmus paper a different color

Question 41

Acids all start with __.

Answer 41

H

Question 42

All acids contain ____.

Answer 42

Hydrogen

Question 43

Bases feel _____.

Answer 43

Slippery

Question 44

Bases have a ____ taste.

Answer 44

Bitter

Question 45

Acids have a ____ taste.

Answer 45

Sour

Question 46

Acids are also known as ___ donors.

Answer 46

Proton

Question 47

Scale of 0-14, 0 represents a strong _____ and 14 represents a strong _____.

Answer 47

Acid | Base

Question 48

The substance that is dissolved into the solution

Answer 48

Solute