stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Chemistry Fall Semester Final Review Flashcards | StudBud
Explore
/
Chemistry Fall Semester Final Review
Chemistry Fall Semester Final Review
69 terms
·
StudBud Administration
·
396 plays
Imported from external platform
Flashcards
69 cards
F
Practice quiz
P
Host live
L
Questions
69
Answers
1
Molecules in a solid move
Fast
Medium
Slow
2
Atoms are made up of three basic parts, which are -
neutrinos, protons, neutrons
electrons, neutrons, and quarks
quarks, protons, electrons
Protons, neutrons, electrons
3
Which of the below elements will most likely form an Covalent Bond?
H and O
K and Cl
Al and Mg
K and Na
4
Which change can be easily be reversed?
Chemical Change
Physical Change
Both a physical and chemical change
Neither a physical or chemical change
5
Which change creates a NEW substance?
Physical Change
Chemical Change
6
When a new substance is formed with different properties than the original substance it is called a
Chemical change
Physical change
Boiling
Freezing
7
The molecules in a gas....
are in a regular pattern
slide past one another in a flowing manner
vibrate, move freely, and spread
are tightly packed
8
Two elements that have similar physical and chemical properties are most likely in the same...
row
group
period
9
The variables that stay the same in an experiment are the _______________
Control
Independent
Dependent
10
The number of _____ is most important in determining how an atoms will bond.
Electrons in the innermost shell
Valence Electrons
Neutrons
Protons
11
If an atom loses two electrons what charge will it have?
+1
-2
+2
-1
12
Rutherford's gold foil experiment provided evidence that...
negative and positive charges are spread evenly throughout the atom.
alpha particles have a positive charge.
there is a dense positively charged nucleus at the center of an atom.
gold is not a dense as previously thought.
13
Which scientist first developed 4 rules for atomic theory, and helped kick start modern chemistry?
Thomson
Rutherford
Democritus
Dalton
14
What is the name for an ion with a positive charge?
cation
onion
anion
union
15
Subatomic particles with a negative charge
Electrons
Quarks
Protons
Neutrons
16
Subatomic particles that are neutral in charge
Protons
Electrons
Neutrons
Nucleus
17
James Chadwick discovered the ________.
proton
electron
neutron
nucleus
18
This bullseye demonstrates...
Low Accuracy & Low Precision
High Accuracy & High Precision
High Accuracy & low precision
Low Accuracy & High Precision
19
Covalent bonds form between what types of elements?
Metal to Nonmetal
Nonmetal to Nonmetal
20
How close a measurement is to the accepted value is called..
Estimate
Precision
Accuracy
Significant
21
Particles in this state of matter are moving the fastest.
Gas
Solid
Liquid
22
The chart scientists use to organize and classify all the known elements
the chart
elements chart
Period table
Periodic Table of the Elements
23
If an atom gains two electrons what charge will it have?
+2
-2
+1
-1
24
What element is pictured?
Boron
Beryllium
Arsenic
Hydrogen
25
In which step of the Scientific Method would you use graphs?
asking questions
communicate results
make a hypothesis
analyze data
26
What is the amu of an electron
1
3
Almost zero
2
27
The state of matter in which the atoms are locked and vibrate in place.
Liquid
Solid
Gas
28
The atoms along the staircase are called
metals
nonmetals
metalloids
noble gases
29
Which of the following is an example of chemical change?
A plant collecting sunlight and turning it into food.
Filling up a balloon with hot air.
Taking a glass of water and freezing it by placing it in the freezer.
Your dog ripping up your homework.
30
Who came up with the model of an atom pictured?
Ernest Rutherford
Niels Bohr
James Chadwick
J.J. Thompson
31
What scientist is best known for his "Plum Pudding" model of the atom?
Democritus
John Dalton
J.J. Thomson
Ernest Rutherford
32
Neon has an atomic number of 10 and an atomic mass of 20.180. How many protons, electrons, and neutrons will it have?
P=10 E=10 N=10
P=10 E=10 N=11
P=10 E=5 N=5
P=5 E=5 N=10
33
The atomic number for Oxygen is 8, so
the atom is decaying
the mass of the atom is 8
the atomic mass is less than 8
there are 8 protons in the atom
34
A student is unsure about the instructions for part of the lab. The best thing to do is
watch the person at the next lab station and follow their example
ask the teacher
skip it and go on to the next part
try different methods until something works
35
Scientists usually design experiments
in order to develop new laboratory tools.
All of the above
based on wild guesses.
with a good idea of the expected experimental results.
36
If an atom has 7 protons and 7 electrons what charge will it have?
-2
+2
0
-1
37
How many electrons does chlorine (Cl) need to gain in order to have a full outer shell?
1
8
0
7
38
He claimed that matter was made of small, hard particles that he called “atomos.”
Einstein
Moseley
Dalton
Democritus
39
The force that hold two atoms together is called a ______.
Reaction
Chemical Change
Chemical Bond
Physical Change
40
A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass
Electron Shells
Nucleus
Electron Cloud
Orbitals
41
This contains most of the mass of an atom
Isotope
Electron Cloud
Nucleus
Electron
42
He developed the planetary model of the atom.
Rutherford
Chadwick
Dalton
Bohr
43
How did each model of the atom help to develop the atomic theory?
Each model showed new particles that had been discovered.
the model built upon the other to show properties of previous discoveries
Each model showed different properties of the same structure.
Each model provided opinions that were added.
44
What characteristic best describes what happen during a physical change?
Mass is lost
Composition stays the same
Composition changes
Form stays the same
45
The atomic number tells you what?
number of neutrons
number of protons
number of electrons
both electrons and protons in an atom.
46
Which is an example of chemical change?
Bread is baked
Wood is cut
Wire is bent
Water freezes
47
Mendeleev first ordered the periodic table of elements by increasing
atomic weight
atomic mass
atomic number
atomic symbol
48
Elements which are shiny, conduct electricity and heat are called
metalloid
all of the above
metal
nonmetal
49
A hypothesis is a
testable possible explanation of an observation.
concluding statement.
definite answer to a given problem.
proven statement.
50
What is the amu of a neutron?
2
almost zero
1
3
51
Which scientist disagreed with the idea that atoms existed?
Rutherford
Democritus
Aristotle
Dalton
52
The ________ is the variable that you change in an experiment.
Independent
Dependent
53
Is this a covalent bond or an ionic bond?
Covalent
Ionic
54
The word theory used in a scientific sense means
None of the above
an absolute scientific certainty.
a guess made with very little knowledge to support it.
that of which the scientist is most certain.
55
The variable that is measured in an experiment is the ____ variable.
Control
Independent
Dependent
Experimental
56
Where electrons are likely to be found as they travel around the nucleus
Within a Proton
Electron Cloud
Nucleus
Within a Neutron
57
Each column in the periodic table is called a
group
period
cluster
unit
58
What is the name for an ion with a negative charge?
Anion
Onion
Union
Cation
59
A charged Particle is called an
Compound
isotope
Molecule
Ion
60
What type of bond is this?
Ionic
Covalent
61
Which group of the periodic table is composed of inert (not reactive) gases?
halogens
noble gases
alkaline earth metals
alkali metals
62
If the chemical properties of a substance remain unchanged and the appearance or shape of an substance changes it is a
Both a physical and chemical change
Chemical change
Physical change
Neither a physical or chemical change
63
You are throwing darts at a dartboard. Pick TWO statements that accurately describe your attempts to hit the target.
NOT Accurate
Precise
BOTH Accurate and Precise
Accurate
64
An atom's overall charge is ________.
negative
depends
neutral
positive
65
A horizontal row of elements in the periodic table.
column
group
period
66
A covalent bond in which electrons are shared unequally is:
a double bond
polyatomic
ionic
polar
67
A water molecule (H2O) is an example of a covalent bond because ____.
Hydrogen and oxygen are both negative ions.
Electrons are shared between the hydrogen and oxygen
They do not form a neutral group of atoms.
The hydrogen gains an electron an the oxygen loses one.
68
When dripping water turns into icicles.
Melting
Evaporation
Condensation
Freezing
69
When Calcium forms a bond, what will occur?
Calcium with give away two valence electrons to form a covalent bond.
Calcium will give away two valence electrons to form an ionic bond
Calcium will share two valence electrons to form an covalent bond
Calcium will share two valence electrons to form an ionic bond.
