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Unit 1 Review
Unit 1 Review
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Covers Chapters 1-3 - General Chemistry
Flashcards
48 cards
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Practice quiz
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Questions
48
Answers
1
Representation of a solid.
C
B
A
2
A certain piece of metal has a volume of 245 cm
3
and a mass of 612 g. What is the density?
2.50 g/cm3
25.0 g/cm3
4.0 g/cm3
0.4 g/cm3
3
What is 60 degrees Celsius expressed in Kelvin?
-213K
333K
213K
4.5K
4
Mass is neither created nor destroyed.
True
False
5
Representation of a gas
C
A
B
6
Characteristics used to describe matter can be classified as.
Intensive Properties
All of the above
Extensive Properties
Properties
7
A procedure that is used to test a hypothesis.
Theory
Dependent Variable
Independent Variable
Experiment
8
The study of all chemicals containing carbon.
Organic Chemsitry
Physical Chemistry
Inorganic Chemistry
Biochemistry
9
Which one is not a process that separates a solid from a liquid.
Distillation
Decanting
Vaporization
Filtration
10
If a ball has a density of 0.802 g/cm
3
and a liquid has a density of 0.680 g/cm
3
, will it float
No
Yes
11
Because all things are made up of matter, chemistry affects all aspects of life.
True
False
12
Depends on the amount of matter in a sample.
Mass
Intensive Properties
Extensive Properties
Volume
13
Physical changes can be classified as reversible or irreversible.
True
False
14
A homogeneous mixture is also known as a solution.
True
False
15
Express 0.00000679 in scientific notation.
6.79 x 10-5
6.8 x 106
6.79 x 105
6.8 x 10-6
16
An example of a heterogeneous mixture.
Koolaid
Milk
Oil and Vinegar
Water
17
State of matter that has indefinite volume and indefinite shape.
Solid
Gas
Liquid
18
What is the conversion factor you would use to convert between grams to milligrams?
103 mg / 1 g
1 g / 103 mg
102 mg / 1 g
100 mg / 1 g
19
Lavoisier
Discovered oxygen
Transformed chemistry from observation to measurement
Father of Modern Chemistry
All the above
20
A compound is the smallest form of matter that has the unique characteristics of that matter.
False
True
21
Some properties of a material change, but the composition of the material does not.
Physical Change
Chemical Change
22
The pursuit of chemical knowledge for its own sake.
Analytical Chemistry
Pure Chemistry
Physical Chemistry
Applied Chemistry
23
Compounds can be broken down into simpler substances by chemical means, but elements cannot.
False
True
24
Measurement of the amount of matter an object contains.
Weight
Density
Volume
Mass
25
Neither Precise nor Accurate
A
C
B
26
Express 6.02 x 10
14
in standard notation.
620,000,000,000.00
0.0000000000062
620,000,000,000,000.00
620,000,000.00
27
Developed the tools and techniques for working with chemicals.
Scientists
Physicists
Alchemists
Chemists
28
A quality or condition that can be measured without changing the substance.
Chemical Property
Composition
Characteristic
Physical Property
29
State of matter that has definite volume and indefinite shape.
Liquid
Solid
Gas
30
Accurate and Precise
A
B
C
31
The study of matter.
Chemistry
Physics
Anatomy
Biology
32
A physical blend of two or more components.
Pure Substance
Mixture
Compound
Element
33
The variable observed during the experiment and changes due to another variable changing.
Dependent Variable
Independent Variable
Hypothesis
Theory
34
Produces matter with a different composition that the original matter.
Physical Change
Chemical Change
35
A logical, systematic approach to the solution of a scientific problem.
Scientific Measurement
Scientific Method
Variable
Experiment
36
Anything that has mass and takes up space.
Matter
Chemistry
Volume
Organic
37
Liquids are separated by the different boiling points.
Vaporization
Filtration
Decanting
Distillation
38
The study of processes that take place in organisms.
Inorganic Chemistry
Organic Chemistry
Physical Chemistry
Biochemistry
39
The measure of space occupied by an object.
Weight
Mass
Density
Volume
40
Every sample of a given substance has identical intensive properties because.
Same Mass
Same Weight
Same Composition
Same Volume
41
A certain liquid has mass of 50.0g and a density of 0.950 g/cm3. What is its density?
48 cm3
526 cm3
0.019 cm3
52.6 cm3
42
State of matter that has definite shape and volume.
Liquid
Solid
Gas
43
Precise but not Accurate
C
B
A
44
Depends on the composition of the matter.
Intensive Properties
Mass
Extensive Properties
Volume
45
What is a scales percent error if a 114lb person's acutal weight is 107lb.
-6%
6%
-6.5%
6.5%
46
Contains two or more pure substances that are bonded chemically.
Atom
Compound
Phase
Element
47
Representation of a liquid.
B
C
A
48
What you change during an experiment.
Theory
Dependent Variable
Hypothesis
Independent Variable
