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Chemistry Chapter 1 & 2 Flashcards | StudBud
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Chemistry Chapter 1 & 2
Chemistry Chapter 1 & 2
54 terms
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Review for chapters 1 and 2
Flashcards
54 cards
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Practice quiz
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Questions
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Answers
1
PF is an element
False
True
2
Which is not an example of a physical property
Hardness
Malleability
Color
rusting
3
Alchemists contributed to Chemistry by developing tools and techniques for working with chemicals
True
False
4
A gas has what type of volume?
open
free
indefinite
definite
5
Why is chipping rocks a different kind of physical change than melting ice.
it's reversible, while melting ice is irreversible
it's irreversible, while melting ice is reversible
harder work
it's a chemical change
6
Scientific Method includes 6 steps
True
False
7
Iron rusting is a chemical change
False
True
8
Which one is not a substance
sulfur
diamond
sand
tin
9
What happens during a chemical change?
the composition of matter may change
the composition of matter remains unchanged
the composition of matter always changes
the composition of matter NEVER changes
10
The properties of compounds are very different to their component elements.
True
False
11
A precipitate is
gas that settles from the atmosphere
is a solid that forms from a gas
a liquid that forms out of a liquid
a solid that forms and settles out of a liquid mixture
12
An example of an intensive property is
Hardness
Size
Mass
Volume
13
An element is a substance
False
True
14
Why should a hypothesis be developed before the experiment?
It may be done over again
It guides the experiment
Because...
It states what is proposed to happen
15
Elements and Compounds are different, as
chemically combined compounds make up elements
elements are larger than compounds
chemically combined elements make compounds
compounds are larger than elements
16
When scientists publish the results of their experiments, they also must publish
The country of their origin
Their middle names
The number of pets they have
The procedures
17
The independent variable is the observed variable?
True
False
18
Two types of Physical Changes are reversible and irreversible
True
False
19
Water boiling is a physical change
True
False
20
A change that produces matter with a different composition than the original matter is a
Physical Change
Property Change
Substance Change
Chemical Change
21
Studying chemistry for the sake of knowledge is
Pure Chemistry
Organic Chemistry
Analytical Chemistry
Applied Chemistry
22
Lavoisier helped the progress of Chemistry by
Including his wife promoting equality of men and women
Napping everyday
Studying how to burn things
Changing it from a science of observation to measurement
23
The Conservation of Mass states
mass is everywhere
mass is weight
mass must be balanced
mass is neither created nor destroyed
24
A physical property
Can be discussed
Can be measured and weighed
Can be permanent
Can be observed and measured
25
Elements are symbolized by
two letters with the first capitalized
one capital letter
one or two letters with the first capitalized
pretty pictures
26
Salt dissolves in water is a chemical change
True
False
27
How did Lavoisier's wife help him communicate the results of his experiments?
Wrote letters asking for money to support his work
Illustrated experiments and translated his work
Advocated for his life during the French Revolution
Cooked good food
28
Filtration is a process that separates a solid from the liquid in a mixture
True
False
29
Compounds always contain elements in fixed proportions
False
True
30
Which one is not a state of matter?
liquid
solid
gas
Water
31
Ca is an element
False
True
32
Sour milk underwent a chemical change
False
True
33
Effective problem solving in life or in science requires...
ask for help, do what they tell you
start and stop
research data, develop a plan
develop a plan, implement the plan
34
Scientific Theory is
is never going to be changed
A statement based on multiple observations
An explanation based on multiple observations
Based on fact
35
The baking soda and vinegar lab demonstrated that air has...
pressure
volume
mass
matter
36
A substance that has the same composition and properties wherever it is found.
Mass
Matter
Compound
Chemical
37
Applied Chemistry is
research that is directed toward a practical goal
research for life
research for a college
research just for knowledge
38
Filtration is used to separate solid mixtures
False
True
39
A ___________ is used to describe any part of a sample with uniform composition and properties.
Sample
Section
Property
Phase
40
What is the main difference between physical changes and chemical changes?
PC the chemical compositioin changes and does not in a CC
PC the chemical composition does not change and it does in a CC
41
Chemistry is the study of mass and it's changes
True
False
42
How did the Baking Soda and Vinegar Lab demonstrate the Law of conservation of Mass?
The bottle and contents weighed the same before and after the reaction
The bottle and contents weighed more after the reaction
It didn't
Because the bottle weighed less after I let the air out
43
The ________ is present at the start of a chemical reaction, and the _________is produced.
product, multiple
product, reactant
multiple, product
reactant, product
44
Which of the following is NOT used to solve a numeric problem?
Construct
Evaluate
Analyze
Calculate
45
Rust forming on a lawn mower blade is due to
water
carbon monoxide
iron oxide
oxygen
46
A mixture includes all the follow except
Salt water
cement
sand
baking soda
47
A mixture is
The blend of two or more chemical substances
A chemical reaction of two or more components
The physical blend of two or more components
A fusing of chemicals
48
Extensive Properties are dependent on
the color of the matter
the positioning of the particles within the object
they type of matter
the amount of matter
49
An element is
matter with little mass
the simplest from of matter that has a unique set of properties
substance that contains two or more compounds
a compound
50
When a Compound is written symbolically, you know it is a compound because...
It has multiple letters
It has two or more elements and, therefore, two or more capital letters
It's big
It lists elements from the periodic table
51
A solution can be all the following except
dish water
coffee
tea
oil and water
52
The dependent variable is changed by the scientist.
True
False
53
Extensive properties depend on the type of matter, while intensive properties depend on the amount of matter.
True
False
54
How many phases does a solution have, why?
two because its a mixture
one because the composition is uniform throughout
one because its a mixture
two or more because the composition is not uniform throughout
