stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Chem 120 Exam 1 Flashcards | StudBud
Explore
/
Chem 120 Exam 1
Chem 120 Exam 1
63 terms
·
StudBud Administration
·
26 plays
Imported from external platform
Flashcards
63 cards
F
Practice quiz
P
Host live
L
Questions
63
Answers
1
K
Potassium
Potasium
Kinetic
Chlorine
2
Silver
Ag
Au
Si
Sv
3
What is 3400000 in scientific notation?
3.4 x 10^6
34.0 x 10 ^7
34.0 x 10 ^-7
3.4 x 10 ^-6
4
Cd
Cab
Cadmmium
Catastrophic
Cadmium
5
What is 0.0003 in scientific notation?
0.3 x 10^-3
30.0 x 10^-5
3.0 x 10^4
3.0 x 10^-4
6
Where are Alkali metals?
Group 2
Group 18
Group 17
Group 1
7
2/5 is what percentage?
30
20
25
40
8
What is a Chemical change?
Baking a cake
Crushing a can
Cutting down a tree
Ice cube melting
9
What is an alpha particle?
Radioactive particle made up of 1 proton and 1 neutron
Radioactive particle made up of 2 protons and 2 neutrons
Radioactive particle made up of 1 proton and 2 neutrons
Radioactive particle made up of 2 protons and 1 neutron
10
What does atomic number indicate?
Number of protons
Mass
Number of neutrons
None of the above
11
Milli means?
0.01
1000
0.001
1
12
What are the units of energy?
Joule, kilojoules
Calorie, kilocalorie
None
All
13
What is a period on the periodic table?
Rows (horizontal)
Columns (vertical)
Clusters
Diagonal
14
What is the charge on neutrons?
Negative
Neutral
All of the above
Positive
15
Which is a conclusion
People prefer black chairs
Take a poll of preferred chair color
The poll was inconclusive
All the office chairs are black
16
When are Zeros significant?
Between numbers (105)
All of the above
Place holder after decimal (120.00)
Place holders before decimal (1,000)
17
What does mass number indicate?
Number of protons
None of the above
Total number of protons and neutrons
Number of neutrons
18
Kilo means?
1
1000
100
10
19
What is a pure substance?
Oranges
Sandwiches
Light bulbs
Water
20
What is 9.2 X 10^-3
0.092
92000
9200
0.0092
21
Temperature is measured in what?
C
All of the above
F
K
22
What is the charge on protons?
Neutral
All for the above
Negative
Positive
23
What is the charge on electrons?
All of the above
Neutral
Negative
Positive
24
What is an element?
Substance ,add from multiple atom types
Substance made from one type of atom
25
If the half life is 3 hours, and you start with 20 mg how much is left after 9 hours?
10
2.5
20
5
26
What is an isotope?
Two elements with the same mass number
Two elements with the same number of neutrons
Radioactive form of an element
27
What is a HETEROgeneous mixture?
Air
Lemonade
Black tea
Cereal with milk
28
What is a beta particle?
Alpha ray
Slow moving electron
I don’t know
Fast moving electron emitted by radioactive decay of substances
29
Where are Halogens?
Group 2
Group 1
Group 17
Group 18
30
Gold
Gd
Ag
Au
Go
31
What is half life?
Time required for radiation to decrease by 70 percent
Time required for radiation to increase
Time required for the radiation to decrease by half
Time required for radiation to be gone
32
Lead
Led
Pd
L
Pb
33
Sr
Strontium
Stronium
Sugar
Static
34
Centi Means?
100
0.1
1
0.01
35
16/20 is what percentage?
75
80
12
40
36
What is 5.7 x 10^4
0.00057
57000
570000
5700
37
What are the three parts of an atom?
Proton
All of the above
Electron
Neuton
38
What is potential energy?
Airplane
A stretched rubber band
Golf ball on a tee
Insect flying
39
What is the formula for density?
Volume times mass
Length times width
Volume divided my mass
Mass divided by volume
40
Micro means?
1000
10^-6
0.01
0.001
41
What is specific heat?
The heat required to melt something
Nothing
The amount of time it takes something to heat up
The heat required to raise the temperature of something.
42
Which is a hypothesis?
The poll was inconclusive
All the office chairs are black
Take a poll on preferred chair color
People prefer black chairs
43
What are Metalloids?
Halogens
Elements with metal and non metal properties
Nonmetals
Metals
44
What is a mixture?
Table salt
Saltwater
Sugar
Tin
45
Where are transition metals?
Group 1-18
Group 4-12
Group 3-16
Group 3-11
46
Al
Argon
Alluminum
Alligator
Aluminum
47
What is matter?
Solids
Gas
Any physical substance
Liquids
48
Where are Alkaline Earth metals?
Group 2
Group 17
Group 18
Group 1
49
Which is an experiment?
Take a poll of preferred chair color
People prefer black chairs
The office chairs are black
The poll was inconclusive
50
What is kinetic energy?
A raised weight
A coiled spring
Baseball thrown by a pitcher
A bow pulled back
51
As
Arsanic
Arsenic
Able
Arenic
52
Which is an observation?
Take a poll on preferred chair color
The poll was inconclusive
All the office chairs are black.
People prefer black chairs
53
What is a compound?
Composed of two or more elements
Water
Hydrogen
Sulfur
54
What is a physical change?
Cooking an egg
Breaking a bottle
Burning wood
Rotting banana
55
What is the correct order of steps for the scientific method?
Observation, hypothesis, experiment, conclusion, theory
Observation, experiment, hypothesis, conclusion, theory
Observation, hypothesis, experiment, theory, conclusion
Theory, observation. Hypothesis, experiment, conclusion
56
What is Chemistry?
Atoms, electrons, protons, and neutrons
Science that deals with composition, structure, and properties of substance
Stupid
Science that deals with chemicals
57
What is a group on the periodic table?
Diagonal
Clusters
Columns (vertical)
Rows (horizontal)
58
What is a HOMOgeneous mixture?
Iced tea
Minestrone soup
Blood
Saline solution
59
Deci means?
1
0.001
0.1
0.01
60
What is a chemical?
A compound or substance that has been purified or prepared.
Na
Weapons of war
Relating to chemistry
61
Mercury
Hm
Hg
Me
My
62
Where are noble gases?
Group 18
Group 2
Group 1
Group 17
63
How many steps are in the scientific method?
5
2
6
7
