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Science midterm review Flashcards | StudBud
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Science midterm review
Science midterm review
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Answers
1
Quantum mechanics is a branch of physics that deals with
Matter and energy anatomic and subatomic levels
Gravitational force and magnetic fields
Laws of motion
Classical physics
2
Which of the following is
NOT
a biblical principle of Christian ethics?
viewing people as God's image bearers
The Creation Mandate
Naturalistic obervations
God's whole truth
3
The monomers of nucleic acid’s are called
Nucleotides
Amino acids
4
Potassium-39 and potassium-41 always have the same number of?
Proton
Crouton
Valence electron
Electron
5
The bore model suggests that electrons move
In a flat ring around the center
Randomly
In distinct spherical orbit at fixed distance
Rapidly
6
The SI unit of mass is the
meter
inch
kilogram
kelvin
7
Which of the following would be an example of quantitative data?
colores (translation for eric colors)
length
i just stopped putting pics that do make sense so dont trust them
texture
8
Hydrocarbons are compounds made of carbon and
Helium
Gold
Neon
Hydrogen
9
Which of the following correctly arranges the elements from smallest atomic radius to largest
Barium strontium magnesium beryllium
Barium, beryllium, magnesium, strontium
Barium, magnesium, strontium, beryllium
Beryllium magnesium strontium barium
10
What is the name for the covalent compound SF6
Fluoride hexasulfite
Hexafluoride sulfate
Sulfur hexafluoride
Monosulfur hexafluoride
11
which of the following is not a mixture?
steel
seawater
a cup of coffee
diamond
12
Isomers have the same what?
Structural formulas
Molecular formulas
13
Large polymers of glucose molecules are called
Starches
Proteins
14
Which of the following affects the size of an elements atomic radius
Neither a nor b
The number of energy levels
Additional protons
Both A and B
15
Which of the following is a weighted average
Atomic mass
None of the above
Atomic number
Mass number
16
Pentene a hydrocarbon with five carbon chain is an example of an _________ hydrocarbon
Unsaturated
Saturated
17
What is Physical Science?
human societies and relationships
nonliving matter and energy
life
the earth, its oceans. and the atmosphere
18
Which of the following is evidence of order in nature?
the seasons
repeated patters found in the properties and structure of elements
daily, weekly, and monthly cycles
all of the above
19
Refer to a periodic table what is the family name for the group containing chlorine
Noble gases
Halogen
Metal Lloyd oops not fixing that
Mixed group
20
The modern periodic table has ______ periods and ______ groups
Seven; 18
18; seven
Three; eight
Eight; three
21
Which of the following has the largest atomic radius
Cesium
Radium
Sodium
Argon
22
The modern periodic table arrange is elements according to
Atomic masses
Law of octaves
Triads
Atomic numbers
23
The random motion and collision of particles is called
charlie brown motion
definite proportions
dance dance revolution
brownian motion
24
Refer to the periodic table which diagram shows the correct electron dot notation for calcium
D
B
C
A
25
Pure water, H2O, is classified as which kind of substance?
element
compound
mixture
26
How many valence electrons does silicon (group 14) have
9
1
Seven
4
27
Which of the following is
NOT
a biblical motivation of Christian ethics?
naturalistic observations
love for God and others
God's whole truth
hope in God's promises
28
what property measures a fluid's resistance to flow
viscosity
density
#alannisvibess
fluidity
29
What is a model?
experiment designed to answer a specific question
workable explanation or description of a phenomenon
YEA THIS ISNT THE ANSWER IDK WHAT TO PUT HERE
a understanding of a phenomenon that don't change
30
two different elements that are chemically combined form a
polymer
mixture
compound
monomer
31
Fruits vegetables and grains are common sources of
Lipids
Carbohydrates
Proteins
Nucleic acid
32
Do unique of Mendeleev classification method was that he
this may or may not be the right answer don’t pick it because u will lose
Used superscripts
Left blank spaces for predicted not discovered elements
Arranged Elements by atomic #
33
Which of the following frameworks for carbon atoms is found in organic molecules
Straight
All the above
Ring
Branched
34
The law of conservation of matter states that
The amount of matter can’t change
All of the above
Matter can change forms
Matter can be neither created or destroyed
35
Which of the following represents a carbonyl group
O-H
C=O
C-O
O=H
36
ductility and conductivity are ex. of
chemical prop.
physical prop.
37
Rutherford called foil experiment gave rise to which atomic model
The plum pudding model
The nuclear model
Satyrian model
Quantum mechanical needles for modeling I don’t know at this point
38
The elements in the same _______ on the periodic table have the same number of bins electrons
Row
Column
39
Alkynes have at least _________ bond
Double
Triple
Single
40
Uranium ,found below the main body of the periodic table, is best classified as an
Transition metal
Inner transition metal
Mixed group
41
How many atoms are represented by the chemical formula CuSO2 <—- subscript
7
4
6
2
42
Carbon – 14 is different from carbon – 12 in that it has a different number of?
Cosmic brownies
Neutron
Proton
Electron
43
And ionic bond between an alkali metal atom & a non-metal atom. what is the Anion?
Nonmetal atom
The alkali metal Atom
44
Who first proved that atoms were the visible when he saw evidence of charged particles existing in the atom?
Jj Thompson
Eric Gil
Thomas Jefferson
Dalton
45
Saturated hydrocarbons have
Three or more bonds
At least one multiple Bond
Only single bonds
Two bonds
46
the state of matter of a substance is an ex. of
physical prop.
chemical prop.
47
The octet rule can be satisfied when an atom
Gains enough electrons to have full octet in its valence energy level
All of the above
Loses enough electrons to expose full octet
Shares electrons
48
Covalent bonding forms ________ ,while ionic bonding forms__________
Diatomic molecules; Lewis structures
Molecules; crystals
Polar molecules; non-polar molecules
49
An anion has more ______ than _____
Neutrons; protons
Protons; electrons
Electrons; protons
Electrons; neutrons
50
How many valence electrons do alkaline earth metals have
Eight
3
Two
Seven
51
The SI unit for the intensity of a light is the
candela
candale
ampere
teehee
52
Which is the currently excepted model of the atom
Bohr model
Quantum mechanical model
53
Atoms consist of all the following except
molecules
electrons
U ALREADY KNOW WHICH ONE IT IS
neutrons and protons
54
The SI unit for electric current is the
minutemen
dr hatch
kelvin
ampere
55
Two atoms share electrons form what kind of bond
Ionic
Metallic
Polar
Covalent
56
Which of the following has the greatest electronegativity
Chlorine
Rubidium
Lithium
Fluorine
57
which is
not
a physical property
flammability
color
freezing point
density
58
two different elements that are only physically combined form a
yeah
proton
just pick one of those cause idk
mixture
59
which state of matter has a fixed shape?
liquid
gas
solid
plasma
60
Which two divisions of science are branches of physical science?
physics
biology
social science
chemistry
61
Which principle allows us to conclude that gravity acts the same today and will tomorrow as it did yesterday?
principle of cause and affect
principle of uniformity