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Chemistry comp review help Flashcards | StudBud
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Chemistry comp review help
Chemistry comp review help
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Get ready to study chemistry!!---- Get out your scientific calculator
Flashcards
38 cards
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Questions
38
Answers
1
What is the eyewash used for?
Washing your eyes out if an eyelash gets in your eye
All of the above
Washing your eyes out if your contacts fall out
Washing your eyes out if you get chemicals in them
2
What is an ion?
Adding or removing electrons
Adding or removing neutrons
Adding or removing protons
When the # of electrons isnt equal to the # of protons
3
What does the blue part of the NFPA diamond mean
There is no health hazard
Your health hazard is severe
You have serious health hazard
The health hazard will give you instantaneous death
4
What is group 7A of the periodic table
Halogens
Chalogens
Actinides
Lanthanides
5
What should you NOT have in a Chemistry lab
Goggles
Gloves
A fire starter
Tied back hair
6
What is the phase change of liquid to solid
freezing
evaporation
melting
condensation
7
which one is a compound
Au
CO2
Hg
He
8
What is this
Beaker
Erlenmeyer Flask
Volumetric Flask
Graduated Cylinder
9
What does PPE mean?
Private proportion equation
The rate at which matter stops
Personal protective equipment
The unit of finding molecules
10
Which one is accurate and precise
B
A
D
C
11
How many valence electrons are in Barium
83
81
2
79
12
What is a cation
neither
A positively charged ion
A negatively charged ion
Both
13
Mostly man-made elements is the Noble gases
True
False
14
What is the phase change of gas to solid
deposition
sublimation
depositing
condensation
15
Which is heterogeneous
Air
Sand & Water
H2
CO
16
Who thought atoms were small, hard, and "uncuttable"
Dalton
Bohr
Democritus
Rutherford
17
How many He atoms are there in 3.42 moles of He
1368 gHe
136.8 gHe
NONE of the above
13.68 gHe
18
What force is the strongest force in an atom
Weak force
Electromagnetism
Gravity
Strong force
19
What period and group is gold (Au) in
6/11
11/6
5/6
6/10
20
How many grams of Ag are there in 11.21 mol of Ag
1.210x103
NONE of the above
Both
1210x103
21
What is the family of soft metals that are very reactive in water
Alkaline Earth
Transition metals
Alkali
Halogens
22
What is the density of an object that has a mass of 1.01g and has a volume of 4.53mL (D=m/v)
0.223g/mL
5.54g/mL
3.52g/mL
4.575g/mL
23
Who created the cathode ray tube experiment
Democritus
Thomson
Rutherford
Dalton
24
Which represents the number of protons in an atom
neutrons
Atomic mass
Atomic number
Protons
25
Where are electrons located in an atom
neutron
proton
nucleus
electron cloud
26
How can a substance get in your body
Inhalation
Smashing it with a hammer when you are wearing PPE
Ingestion
Absorption
27
What reaction is this
Decomposition
Combustion
Sort term reaction
synthesis
28
Which one is homogeneous
H2
Air
CO
Sand and water
29
What phase change is solid to gas
sublimation
condensation
boiling
melting
30
What are atoms with a different number of atomic masses
Anions
Isotopes
Ions
Cations
31
What is the electron configuraton in noble gas notation for Oxygen?
[Ne] 3s2 3p1
1s2 2s2 2p4
[He] 1s2
[He] 2s2 2p4
32
Which is NOT a physical property
boiling point
ductility
odor
reacts with water
33
Who discovered the nucleus and the proton
Thomson
Bohr
Dalton
Rutherford
34
Which one is an element
Co
HeBe
CO
CAu
35
What is the measure of this (UNITS IN MILLILITERS)
5000mL
~ 2 mL
~30.8 mL
~1.00 mL
36
Convert 16.18cg to g
161.8g
1618g
0.01618g
0.1618g
37
What is the mass, charge, and location of a proton
1AMU/none/Nucleus
NONE OF THE ABOVE
none/-1/electron clouds
1AMU/+1/Nucleus
38
Which atom has 22 protons,24 neutrons, and 21 electrons
Berylium
Titanium
Neon
Barium
