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2nd Semester Chapter 3 Section 2 & 3 > Chapter 3 Section 2 > Flashcards

Chapter 3 Section 2 Flashcards

1
Q

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

A

True

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2
Q

The substance that does the dissolving in a solution

A

Solvent

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3
Q

The most common kind of solvent is ______.

A

Water

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4
Q

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

A

Acid

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5
Q

T or F: Acids are compounds.

A

T

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6
Q

Compounds that share some characteristic properties

A

Acids

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7
Q

_____ fruit are acidic.

A

Citrus

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8
Q

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

A
  1. grapefruits
  2. Oranges
  3. Limes
  4. Lemons
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9
Q

Acids react with certain metals to produce _____ gas.

A

Hydrogen

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10
Q

What metals react with acids to produce hydrogen gas?

A

Magnesium
Zinc
Iron

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11
Q

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

A

The seem to disappear in the solution

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12
Q

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

A

Corrosive

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13
Q

What does “corrosive” mean?

A

Eat away at other materials

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14
Q

Acids also react with ____ ions in a characteristic way.

A

Carbonate

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15
Q

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

A

Ion

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16
Q

Carbonate ions contain ___ and _____ atoms bonded together

A

Carbon and Oxygen

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17
Q

What kind of overall charge does a carbonate ion carry?

Positive or Negative

A

Negative

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18
Q

What happens when acids react with carbonate compounds?

A

A gas forms

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19
Q

Scientists who study the earth are called

A

Geologists

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20
Q

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

A

Limestone

21
Q

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

A

Coral Rock

Chalk

22
Q

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

A

Indicator

23
Q

Vinegar and ______ juice turn blue litmus paper red.

A

Lemon

24
Q

Acids always turn litmus paper _____.

A

Red

25
Q

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.

A

Acidity

26
Q

Ascorbic acid is also known as

A

Vitamin C

27
Q

Oranges and tomatoes contain ______ acid.

A

Ascorbic

28
Q

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

A

Folic

29
Q

Acid in the stomach helps to digest ______.

A

Protein

30
Q

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

A

Lactic

31
Q

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

A

Burn

32
Q

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

A

Bases

33
Q

These are often described as the opposites of acids.

A

Bases

34
Q

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

A

True

35
Q

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

A

Baking

36
Q

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

A

Water

Cloudy

37
Q

Strong bases can ___ your skin

A

Burn

38
Q

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

A

Bases

39
Q

_____ make bubbles when in contact with metal.

A

Acids

40
Q

The one similarity between acids and bases is that:

A

They both turn litmus paper a different color

41
Q

Acids all start with __.

A

H

42
Q

All acids contain ____.

A

Hydrogen

43
Q

Bases feel _____.

A

Slippery

44
Q

Bases have a ____ taste.

A

Bitter

45
Q

Acids have a ____ taste.

A

Sour

46
Q

Acids are also known as ___ donors.

A

Proton

47
Q

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

A

Acid

Base

48
Q

The substance that is dissolved into the solution

A

Solute

2nd Semester Chapter 3 Section 2 & 3 (2 decks)

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