Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Chemistry 1110 > Basic concepts of Matter > Flashcards

Basic concepts of Matter Flashcards

1
Q

The smallest particle that can be obtained by subdividing a compound while retaining the properties of the compound is a_______?

A

Molecule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

A compound is a pure substance made up of_____or more different kinds of elements.

A

2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The properties of table salt are______than the elements sodium and chlorine from which it is made.

A

Different

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

When a compound is broken down by chemical methods, it_______into a different substance.

A

Changes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

A pure substance which cannot be broken down into simpler substances by chemical or physical means.

A

Element

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Analysis of a pure substance shows that it contains two elements

A

Compound

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

A pure substance decomposes upon heating to give two new substances.

A

Compound

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

A pure substance is known to contain only one kind of atom.

A

Element

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Both elements and compounds are pure substances. True or false?

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

A compound results from physical combination of two or more elements. True or false?

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Compounds can be broken down into their elements by chemical means. True or false?

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Does each element have its own unique name?

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Each element has a_____and a. Chemical____.

A

Name, symbol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Is the first letter of a chemical symbol always or never? Capitalized? Is the second letter of a chemical symbol always or never capitalized?

A

Always, never

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the chemical symbols of the following elements: Copper, Silver, Fluorine?

A

Cu, Ag, F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Water contains ____ as much hydrogen as oxygen?

A

Twice

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

When water is broken down to its elements of hydrogen and oxygen, there will be____as much oxygen gas as hydrogen gas.

A

Half

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The chemical formula for aspirin is c9 h8 04. In a molecule of aspirin, how many atoms of each element are there?

A

Carbon: 9, Hydrogen: 8, Oxygen: 4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

True or false, capitalization is very important in formulas?

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Mg(NO3)2
How many nitrogen atoms and how many oxygen atoms are present in the above formula?

A

2 nitrogen, 6 oxygen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Al2(SO4)3
How many atoms of each element in the above formula are present? Aluminum, sulfur, oxygen?

A

2, 3, 12

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

When an element occurs as a molecule, it is still an______?

A

Element

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

If a molecule only has one element, it is a(n)______?

A

Element

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What is chemistry?

A

The field of study concerned with the characteristics, composition, and transformations of matter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What is matter
Anything that has mass and occupies space
26
Nearly all changes that matter undergoes involve the release or absorption of_____?
Energy
27
Which of the following is a characteristic of all types of matter? A. Naturally occurring B. Visible to the naked eye C. Has mass D. No correct response
C. Has mass
28
Which of the following is classified as matter? Heat energy, scientific theory, chocolate milk, no response?
Chocolate milk
29
Which of the following processes does not fall within the realm of chemistry? Detonation of an explosive Cooking of a hamburger patty Production of blood pressure medication No correct response
No correct response
30
Which physical state of matter is characterized by a definite shape and a definite volume?
Solid
31
Which physical state of matter is characterized by an indefinite shape and a definite volume?
Liquid
32
Which physical state of matter is characterized by an indefinite shape and an indefinite volume?
Gas
33
The characterization "completely fills its container" describes which state of matter?
Gaseous state
34
A distinguishing characteristic of a substance that is used in its identification and description
Property
35
A characteristic of a substance that can be observed without changing the basic identity of the substance
Physical property
36
True or false? During the process of determining a physical property, the physical appearance of a substance may change, but the substances identity does not
True (Example: the melting point of a solid. Although the appearance changes when a solid becomes liquid, it is still the same substance)
37
A characteristic of a substance that describes the way the substance undergoes or resists change to form a new substance
Chemical property
38
True or false? The changes associated with chemical properties always result from the interaction or reaction of a substance with one or more other substances?
False (Sometimes the presence of energy, usually light or heat, can trigger the change known as decomposition)
39
Classify each of the following properties of selected metals as a physical property or a chemical property. 1. Iron metal rust in an atmosphere of moist air 2. Mercury metal is a liquid at room temperature 3. Nickel metal dissolves an acid to produce a light green solution 4. Potassium metal has a melting point of 63°C
1. Chemical 2. Physical 3. Chemical 4. Physical
40
Which of the following statements about various substances describes a physical property of the substance? 1. Copper metal can be drawn into thin wires 2. Gold medal does not tarnish in air 3. Hydrogen peroxide decomposes in the presence of light 4. No correct response
1. Copper metal can be drawn into thin wires
41
Which of the following statements about various substances describes a chemical property of the substance? 1. Silver metal will not dissolve in hydrochloric acid 2. Beryllium metal has a silvery gray color 3. Water or ice melts at 32° f 4. No correct response
1. Silver medal will not dissolve in hydrochloric acid
42
In which of the following pairs of properties are both physical properties? 1. Low density, flammable 2. Reacts with oxygen, does not react with iodine 3. Very brittle, very toxic 4. No correct response
4. No correct response
43
A process in which a substance changes its physical appearance, but not it's chemical composition
Physical change
44
A process in which a substance undergoes a change in chemical composition
Chemical change
45
Categorize the following statements as either a physical or chemical change. 1. The fashioning of a piece of wood into a round table leg 2. The vigorous reaction of potassium metal with water to produce hydrogen gas 3. Straightening a bent piece of iron with a hammer 4. The ignition and burning of a match
1. physical 2. Chemical 3. Physical 4. Chemical
46
"One or more new substances are produced" is always a characteristic of _________?
Chemical change
47
A single kind of matter that cannot be separated into other kinds of matter by any physical means
Pure substance
48
True Or false? A pure substance sometimes has a definite and constant composition
False A pure substance ALWAYS has a definite and constant composition
49
A physical combination of two or more substances in which each substance retains its own chemical identity
Mixture
50
A mixture that contains visibly different phases (parts), each of which has different properties
Heterogeneous mixture
51
A mixture that contains only one visibly distinct phase(part), which has uniform properties throughout
Homogeneous mixture
52
Which of the following is a correct statement about mixtures? 1. The composition of a homogeneous mixture cannot vary 2. A heterogeneous mixture must contain at least three substances 3. All heterogeneous mixtures have a non-uniform appearance 4. No correct response
3. All heterogeneous mixtures have a non-uniform appearance
53
The characterization "two substances present, two phases present "describes what?
Heterogenous mixture
54
How many phases does a mixture of water, ice, and motor oil contain in a heterogeneous mixture?
3 phases
55
Variable properties within a mixture sample is a characteristic of?
Heterogeneous mixtures
56
A pure substance that cannot be broken down into simpler pure substances by chemical means, such as a chemical reaction, an electric, current, heat, or a beam of light
Element
57
A pure substance that can be broken down into two or more simpler pure substances by chemical means
Compound
58
How many known elements are there?
118
59
True or false? A compound is characterized by having properties that are different than it's constituent elements
True
60
The smallest particle of an element that can exist and still have the properties of the element
Atom
61
A group of two or more atoms that function as a unit because the atoms are tightly bound together
Molecule
62
A molecule that contains two atoms
Diatomic molecule
63
A molecule in which all atoms present are of the same kind
Homoatomic molecule
64
A molecule in which two or more kinds of atoms are present
Heteroatomic molecule
65
The_______ is the limit of physical subdivision. The_________ is the limit of chemical subdivision.
Molecule, atom
66
A notation made up of the chemical symbols of the elements present in a compound and numerical subscripts that indicate the number of atoms of each element present in a molecule of the compound
Chemical formula

Chemistry 1110 (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions