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Intro to Chemistry Final Exam ReviewVersión en línea
Chemistry Final Review
1
What is thermal energy flow from warmer to cooler matter known as?
2
What properties does matter have?
4
Helium gas is less dense than air. True or false?
5
How can a mixture of iron and sulfur be separated?
6
What is the term for a uniformly distributed solute in a solvent?
7
A substance is a single kind of matter with a specific what?
8
What energy change releases energy and warms the environment?
9
What is the smallest part of a substance?
10
What is the smallest unit of matter that has the properties of its element?
11
An object that floats on water has density what?
12
An object that sinks in water has density what?
13
On the moon, an object's weight is 1/6 of Earth’s; what about mass?
14
Another term for the ability to burn is what, at temperatures below 37.8 C?
15
Water and ice are the same substance with the same composition. True or false?
16
Butter melting in a pan is what type of change and energy flow?
17
Characteristics of matter are called what?
18
Compounds are formed as a result of what during chemical reactions in a set ratio?
19
Which two properties are derived measurements and must be calculated?
20
Glass breaking, ice melting, and the dissolution of sugar in water are all what properties?
21
H2SO4 and H2SO3 are not the same substance. Is this true?
22
Iron rusting, silver tarnishing, fruit ripening, and combustion are all what properties?
23
New substances are produced by a(n) what change?
24
One liter is equal to how many milliliters?
25
One milliliter is equal to how many cubic centimeters?
26
Salad dressing is an example of a what mixture?
27
Salt water is an example of what type of mixture, specifically what?
28
What are the five PHASES (states) of matter?
29
Substances in a MIXTURE keep their own properties since they are not chemically combined. What is this statement about?
30
The TEMPERATURE of an object is a measure of the thermal energy (motion of the particles) of a substance. What is being measured?
31
The ability of iron to rust is a(n) what property?
32
The amount of matter in an object is a measure of its what?
33
The amount of space an object takes up is a measure of its what?
34
The chemical SYMBOL for tungsten is what, where Au stands for which element?
35
The formula for water is what, and for hydrogen peroxide is what?
36
The energy stored in bonds between atoms is what type of energy?
37
The form or appearance of a substance is altered during what change?
38
The Law of Conservation of Mass states that matter is what during changes?
39
The mass of an object is constant, while its weight changes depending on location. True or false?
40
The mass per unit volume is a measure of its what?
41
Tungsten is used in incandescent bulbs because of its property of what?
42
The physical property that makes metal pots good for cooking is what?
43
In H2SO4, the ratio is what for hydrogen, sulfur, and oxygen?
44
The SI unit for density is kilogram per cubic meter, but the common unit is what?
45
What is the SI unit for mass?
46
What is a common unit for volume?
47
What is the SI unit for weight?
48
The simplest type of substance is a(n) ______.
49
A homogeneous mixture has what property?
50
A heterogeneous mixture has parts that are ______.
51
When atoms combine to form compounds, do their properties change?
52
Which is true about elements and compounds?
53
What is the common unit for mass in everyday use?
54
Are compounds formed from elements?
55
The SI unit for mass is KILOGRAM, but the common unit is GRAM.
56
The SI unit for volume is CUBIC METER OR LITER, but the common unit is CUBIC CENTIMETER OR MILLILITER.
57
The SI unit for weight is NEWTON.
58
The simplest type of substance is a(n) ELEMENT, which is made up of atoms AND CAN FORM molecules, or compounds.
59
The substances in a HOMOGENEOUS mixture are evenly distributed and you cannot see the parts.
60
The substances in a HETEROGENEOUS mixture can usually be seen and are easily separated.
61
When the atoms in elements combine to form compounds, their PROPERTIES change.
62
A state of matter with a definite volume, but no definite shape is a(n) _____.
63
A(n) gas has neither a definite ____ nor a definite ____.
64
A(n) _____ solid has a melting point range.
65
A(n) ______ solid has a definite melting point.
66
____ occurs when the particles of a liquid lose enough energy to take fixed positions.
67
_____ is the reverse process of condensation.
68
_____ occurs at a specific temperature when a liquid becomes a gas beneath and on the surface of a substance.
69
Sublimation is the process by which a solid becomes a gas without becoming a liquid, it is ______.
70
______ is the process by which a gas becomes a liquid, it is exothermic.
71
_____ energy is the total energy of the motion of the particles in a substance.
72
Endothermic is the change in which energy is _____(the environment loses energy and becomes cooler).
73
_____ Point is the temperature at which a liquid starts to become a gas (100°C for water), it is unique for every substance.
74
As a result of ______'s gold foil experiment scientists inferred that an atom’s positive charge must be concentrated in the nucleus of the atom.
75
____ created the first periodic table by arranging elements in order of increasing atomic mass.
The atomic number of an element is the number of protons in its nucleus.
76
Elements known as nonmetals are located to the ____ of the metalloids on the periodic table.
77
A(n) ____ particle is released when radium decays into radon, while a(n) beta particle is released when changing a neutron into a proton when lead decays into bismuth.
78
_____ radiation is always released during any type of radioactive decay.
Alkali metals react violently with water.
79
_____ metals react violently with water.
80
____ metals tend to be less reactive than the families to the left and right of them.
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