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General Chemistry Chapters 1-3 Test Review Flashcards | StudBud
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General Chemistry Chapters 1-3 Test Review
General Chemistry Chapters 1-3 Test Review
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General Chemistry Chapters 1-3 Test Review SCA
Flashcards
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Questions
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Answers
1
A "4" located in the blue square of the hazard sign (pictured) indicates that the substance is:
Extremely flammable
Extremely corrosive
A mild health hazard
A major health hazard
2
Calculate 4.3 * 0.05
0.21
0.22
0.215
0.2
3
In the "Gold Foil" experiment, when Rutherford shot particles at the gold foil:
Particles went straight through, unfazed by the foil.
Particles were deflected in all directions, including back.
Particles were deflected in all directions, but not back.
Particles bounced back and did nothing else.
4
How many significant figures are in the following number? 05023010
8
6
4
7
5
Which particles give a molecule weight?
Neutrons and electrons
Electrons and protons
Neutrons and protons
Electrons and neutrons
6
How many moles are in 54 g of H2O?
4 moles
2 moles
3 moles
1 moles
7
How many protons, neutrons, and electrons are in Cl- 35?
17, 18, 17
17, 17, 17
18, 17, 18
18, 17, 18
8
How many molecules are in 2.11 moles of H2O? GIVEN: Avogadro's number = 6.02*10^23 molecules
1.31*10^23
1.11*10^24
1.27*10^23
1.27*10^24 molecules
9
Calculate percentage error if your experimental yield is = 24.3 g and calculated yield = 27.1 g
10.3 %
11%
89%
89.6 %
10
An isotope differs from a normal element by its:
molecule number
neutron number
electron number
proton number
11
A dissolved salt-water solution is an example of a:
pure substance
heterogeneous mixture
compound
homogeneous mixture
12
When a substance changes from a liquid to a gas, a chemical reaction has DEFINITELY occurred.
False
True
13
What is the mass number of an atom with 14 protons, 8 neutrons, and 14 electrons?
36 amu
14 amu
22 amu
28 amu
14
Which is Avogadro's number?
6.2 *10^23
0.602 *10^23
6 *10^23
6.02 * 10^23
15
How many protons, neutrons, and electrons are in Carbon-14?
7 protons, 7 neutrons, 7 electrons
7 protons, 7 neutrons, 6 electrons
6 protons, 8 neutrons, 6 electrons
9 protons, 5 neutrons, 9 electrons
16
What is the average atomic mass of the following isotopes: Na-23 (80%) Na-24 (10%) Na-25 (10%)
23.3
23.5
23.2
24.3
17
2.56 g + 9.0 g = ?
10 g
11.56 g
12 g
11.6 g
18
What is the exponential factor of nano?
10^-9
10^-6
10^-2
10^-3
19
On the periodic table, horizontal columns are called ___ and vertical columns are called ___.
groups; periods
periods; groups
rows; groups
periods; rows
20
What is the molar mass of AlCl2?
107 g
85 g
98 g
90 g
21
Which was NOT part of Dalton's Atomic Theory?
All matter is composed of atoms.
The nucleus is composed of protons and neutrons.
Atoms of a single element are identical in size and mass.
Atoms cannot be created or destroyed.
22
What is Mr. T's favorite book in the Bible?
Corinthians
Matthew
Ephesians
Proverbs
23
How many zeroes in the following number are considered significant? 00.050720
3
1
4
2
24
What is the molar mass of N2O4?
92 g
88 g
90 g
100 g
25
What is Mr, T's favorite type of movie?
Comedy
Fantasy
Horror
Mystery
26
Which of the following is the smallest particle?
Proton
Electron
Groupon
Neutron
27
What is the exponential value of "micro"?
10^3
10^6
10^-3
10^-6
28
The density of honey is 1.36 g/mL. If you have 42.2 g of honey, how many mL do you have?
57.4 mL
31.0 mL
30 mL
57 mL
29
Which of the following is a noble gas?
I
Mg
Ne
Al
30
Calculate 60.0g/5mL
10 mL
12.0 mL
20 mL
12 mL
31
What is Mr. T's favorite band?
Blink 182
The Beatles
Aerosmith
Imagine Dragons
32
How many moles are in 55.2 g of Cl2?
0.78 moles
7.8 moles
0.77746 moles
0.078 moles
33
Which is a nonmetal?
Lithium
Iron
Magnesium
Carbon
34
Convert 30 milligrams to grams.
3.0*10^3 grams
3.0*10^-3 grams
3.0*10^2 grams
3.0*10^-2 grams
35
What is Mr. T's dog's name?
Harvey
Molly
Indi
Wendy
36
Matter that has no definite volume, but an indefinite shape (a shape defined by its container):
Solid
Plasma
Gas
Liquid
37
Which of the following is a halogen?
Br
H
Na
Kr
38
What is the molar mass of CH4?
16 g
18 g
12 g
10 g
39
Ice melting can be considered a(n):
kinetic process
endothermic reaction
exothermic reaction
coerced reaction
40
Convert 300 cm to micrometers
3.0 * 10^7
3.0 * 10^-6
3.0 * 10^-7
3.0 * 10^6
41
Mercury oxide --> Mercury + Oxygen Which is/are the reactants?
Mercury oxide
Oxygen
Mercury
Mercury and oxygen
42
Convert 1.0 * 10^5 nanometers to meters
1.0 * 10^-6 m
1.0 * 10^-4 m
1.0 * 10^-3 m
1.0* 10^-9 m
