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Chapter 2 Review Flashcards | StudBud
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Chapter 2 Review
Chapter 2 Review
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Atom, Molecules, and Ions
Flashcards
61 cards
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Practice quiz
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Questions
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Answers
1
Electromagnetism is stronger (10^42 times) than gravity.
False
True
2
Which force is dominant in atomic structure and chemical bonding?
Gravity
Electromagnetism
Weak Nuclear
Strong Nuclear
3
Which of the following from +1 charges by losing 1 electron?
Al
Ca
Na
F
4
Which of the following elements would you expect to have a charge of 2+ in ionic compounds?
S
Mg
Cf
Na
5
Which of the following was NOT described in Dalton's postulates?
masses of the same elements can differ from one another based on neutrons
matter is made of atoms
atoms are indivisible
matter combines in fixed ratios based on mass
6
Which of the following forms -2 charges in ionic compounds?
Cl
F
S
I
7
Write the chemical formula for iron (III) oxide
FeO
Fe2O3
FeO2
Fe3O2
8
The fact that pure MgO is always in a mass ratio of 1.52 : 1 in respects to the elements involved is a demonstration of
Law of Multiple Proportion
Law of Conservation of Matter
Law of Constant Composition
Law Definite Proportion
9
I am ready for the test.
False
True
10
Which of the following laws best describes the fact that atoms are not "lost" in normal chem. reactions?
law of def. proportion
law of constant composition
law of multiple proportion
law of conservation of mass
11
How many significant figures are represented in 0.1001
3
4
2
1
12
In the interactive exercise, all of the following are proof that EM is stronger than gravity except?
being able to lift a partner's hair with a charged balloon
the observation that a magnet stays firmly stuck to the wall
the cloud chamber and radioactivity being visualized
bending water with static
13
What does atomic theory state?
Atoms can be rearranged to form new elements.
Atoms make up compounds.
Atoms are indivisible spheres of mass.
All matter is made up of tiny particles called atoms.
14
Name this dish.
Teriyaki Chicken
Butter Chicken
Chicken Noodle Soup
Chicken Alfredo
15
All of the following laws were used to support atomic theory except?
Law of Conservation of Energy
Law of Conservation of Mass
Law of Definite Proportion
Law of Multiple Proporiton
16
Which of the following is a metalloid?
O
Zn
S
Si
17
Which of the following is likely to form a cation by vacating electrons from an outer orbital?
I
Be
S
O
18
Based on its average atomic mass, which would you suspect is the most abundant isotope of sodium?
Na - 24
Na - 23
Na - 22
Na - 25
19
The mass ratio (C:O) is 1:1.33. It would be predicted that the mass ratio of CO2 according to Law of mult. prop....
1:3
1:2
1:2.67
1:1.33
20
There are 118 unique elements, seemingly infinite number compounds, but only ____ types of charge.
2
4
3
1
21
Which of the following finds stability by accepting 1 electron?
P
F
O
S
22
In a pure element, the charge of the electrons is neutralized by the
neutrons
protons
n/a
other electrons
23
Which of the following would you expect to be a poor conductor?
Au
Zn
N2
Cu
24
How many neutrons are found in the nucleus of the most common H isotope, Hydrogen-1?
3
2
0
1
25
What is the atomic mass of pure hydrogen gas? hint: HONClBrIF
4 amu
1 amu
2.02 amu
1.01 amu
26
Approximately, what is the percent comp. by mass of hydrogen in HCl?
50%
10%
3%
5%
27
Properties of matter are developed from the properties and behavior of subatomic particles. Which regards nuclear stab?
proton
neutron
electron
N/A
28
Name the following: CaCl2
calcium chloride
calcium (II) chloride
monocalcium chloride
calcium dichloride
29
Name the following compound: CuO
Copper (I) Oxide
Copper oxide
Copper (II) Oxide
Copper monoxide
30
The conventionally assigned (+) charge in electrostatics is routed in the proton, and the (-), the electron
False
True
31
Thomson reasoned that the charge of the cathode ray was made of negative charges was because
it was pulled towards the negative end of the electric field
n/a the cathode ray was not altered in its course
it was delected more than an atom would be predicted
it was pulled towards the positive end of the electric field
32
Which of the following is a molecular compound?
H2
NaNO3
NaCl
AgCl
33
Which of the following would be most likely to form an anion?
Au
Ca
I
Al
34
Which of the following has 10 neutrons?
H-3
Nitrogen-28
Carbon-13
Neon-20
35
Which subatomic particle governs the identity of chemical elements?
the proton
the neutron
N/A
the electron
36
Which of the following would be considered applications of isotopes?
cancer treatment
medical imaging
radiometric dating like uranium dating
all are applications
37
All of the following are true regarding elements that are isotopes except.
Their chemical properites are somewhat similar
They have the same mass #
They have the same number of protons
They have the same atomic number
38
Which law is demonstrated in this model?
law of conservation of mass
law of constant composition
law of definite proportion
law of multiple proportion
39
What of the following describes the consistent purity of substances?
Law of Constant Composition
Law of Conservation of Mass
Law of Conservation of Energy
Law of Conservation of Energy
40
Which of the following would NOT abide by law of constant comp?
Pure Gold (Au)
Air
Glucose (C6H12O6)
NaCl
41
In Thomson's famous experiment, the path of the electron was ___________ from the positive end of the electric field
unaffected
attracted
deflected
repulsed
42
The first appearance of atoms as a concept is traced through historical records to.....
Rutherford
Aristotle
John Dalton
Democritus, a Greek philosopher
43
Which of the following is always found as a homonuclear diatomic element in its pure state? (HONClBrIF!)
He
C
S
O
44
What is the charge of chlorine in NaCl?
-2
-1
-2
+1
45
Which subatomic particle governs chemical reactivity and just about every concept addressed in chemistry?
proton
n/a
neutron
electron
46
Groups on the table, like the halogens....
are all solids at room temp
have very similar chemical properties
have the same number of electrons
have the same atomic number
47
Name this dish
Chicken Biryani
Pad See Ew
Pad Thai
Lo Mein
48
Which of the following would you expect to be the least effective at conducting electricity (non metal!) ?
Cu
Au
Cl
Ti
49
Which of the following forms a 2+ charge in ionic compounds?
Be
Mg
Ca
All form +2 charges
50
Which of the following was discovered by Rutherford?
Neutron
Mass of electron
Charge of electron
Nucleus
51
Which element has 17 protons?
Ne
O
Cl
He
52
The concept of atoms is traced back through historical record to....who also brought us democracy, geometry and Olympics
Aztecs
Mayans
Native Americans`
Greeks
53
CuO, has a mass ratio of 3.97:1, based on law multiple proportions, you would expect the mass ratio of Cu2O to be
2.5:1
4.5:1
7.94:1
1.5:1
54
Atomic nuclei hold on to electric charges through the force of gravity
True
False
55
The route of the negative charge in atoms is from a lepton particle on the standard model known as the.....
neutron
n/a
proton
electron
56
What is the atomic number of gold?
180
14
79
80
57
Which of the following is best discussed and analyzed as a molecule, rather than a formula unit of a solid?
AgCl
NaCl
CH4
MgO
58
Thomson made a landmark discovery in chemistry shattering Dalton's posulates, what was this land mark disovery?
dense central nucleus
law of conservation of mass
first identification of isotopes
first subatomic particle
59
Name this food item
Brioche
Garlic Bread
Naan
Tortilla
60
Which of the following is a molecular substance?
O2
NaCl
AgI
CaCl2
61
What is the charge of Cobalt in cobalt (III) oxide
2-
2+
3+
3-
