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Chemistry
What is physical chemistry?
the # of electrons is the same as...
Chemistry
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1
the # of electrons is the same as...
protons
neutrons
2
What is physical chemistry?
the study of all chemicals containing carbon.
study of all living things
Study of the processes that take place in organisms.
study of , rate , and energy transfer when matter changes
3
Variable that is observed during an experiment is...
independent
dependent
4
Mixture
idk
Is a physical blend of two or more components.
one substance
the amount of space something occupies
5
anything that has mass and occupies space is called...
matter
an organism
chemistry
volume
6
any of the elements occupying Group IA of the periodic table.
noble gases
alkali metals
alkaline earth metals
transition metals
7
Melting a sugar cube is CHEMICAL change because it is still sugar.
false; physical
True
8
the octet rule gives electrons he same configuration as a noble gas?
false
true
9
characteristics of a gas
definite shape, definite volume , easily compressed
indefinite shape, indefinite volume, easily compressed
indefinite shape, indefinite volume, easily compressed
Indefinite shape, definite volume, not easily compressed
10
an anion loses electrons
true
false
11
very covalent bonds...
1.1-1.6
1.1-2.0
1.1-1.9
1.1-1.5
12
atoms of maingroup elements combine in a way that each atom has 8 elctrons in the valence shell
hex rule
octet rule
penta rule
mono rule
13
an experiment is a Procedure used to test a hypothesis.
true
false
14
ionic bonds are >2.0
true
false
15
are six chemical elements in group 2 of the periodic table.
noble gases
alkali earth metals
transition metals
alkali metals
16
Solution: Another name for a HETEROGENEOUS mixture
false; homogenous
true
17
what is an observation?
a procedure used to test info
Using senses to obtain information.
sharing your answers with others
an educated guess
18
volume formula...
v= m/d
v=d x m
v= d/m
19
Anion symbol is...
=
-
+
?
20
What is organic chemistry?
the study of all chemicals containing carbon.
study of the actions and reactions of matter
study that focuses on the composition of matter.
Study of the processes that take place in organisms.
21
Group B elements which the highest occupied s and nearby d sublevel generally contain electrons
transition metals
noble gases
alkaline earth metals
alkaline metals
22
characteristics of a solid
indefinite shape, definite volume, not easily compressed
definite shape,definite volume, not easily compressed
definite shape, definite volume, easily compressed
definite shape, indefinite volume, and not easily compressed
23
what does vsepr stand for?
valence shared electron pairing routine
valence shared electron proton repulsion
valence shared electron proton routine
valence shared electron pair repulsion
24
Property that depends on the amount of matter in a sample
intensive property
extensive property
25
an outer shell electron that is associated with an atom
isotopes
electron
atoms
valence electron
26
Intensive Property Property depends on the type of matter in a sample not the amount of matter.
true
false
27
electron occupy orbitals of the same energy in a way that makes the number of electrons large
aufbau principle
paulis exclusion rule
hunds rule
28
composed of three different elements
ternary atomic compounds
polyatomic compounds
binary molecular compounds
29
Determine the numbers of neutrons by...
mass # and atomic # being added to each other.
mass # and atomic # being subtracted from one another
30
The name given to a horizontal row of the periodic table is a period.
false
true
31
density formula...
d=m/v
d=m x v
d= v/m
32
electrons occupy the orbitals of the lowest energy first is...
paulis exclusion principal
hunds rule
aufbau principal
33
an element whose properties are normal between metals and nonmetals; electrical semiconductors
metalloids
metals
hallogens
non metals
34
to find celsius you...
-273
+ 273
35
if the principal energy n=3, the # of sub levels is...
3
2
1
4
36
if the principal energy level is n=1, the number of sub levels is...
2
3
4
1
37
atom to mole ...
multiply
divide
add
subtract
38
The sharing of electron pairs between atoms
double covalent bonds
molecular bonds
triple covalent bonds
covalent bonds
39
nonpolar covalent bonds...
0.0-.4
0.0-1.0
0.0-2.0
.4-1.1
40
a hypothesis is ...
a test to check your answers
an educated guess
using you senses to obtain information
41
What is analytical Chemistry ?
study of reactions of the human body
Area of study that focuses on the composition of matter.
study of living things
the study of matter
42
any of the elements fluorine, chlorine, bromine and, occupying group 7 A of the periodic table.
metalloids
non metals
metals
hallogens
43
What is chemistry?
the study of water and its changes
the study of acids and mixtures
study of the earth and how it changes
Study of composition of matter and its changes
44
element in grp 8A of the periodic table, the s/p sublevel of the highest energy levels are full
noble gases
transition metals
alkaline earth metals
actenide series
45
what is biochemistry ?
Study of the processes that take place in organisms.
study of how acids react to each other
study of how animals eat breathe and function
study of living things
46
when converting moles to atoms you...
add
subtract
divide
multiply
47
moderatly covalent bonds...
.4-.9
.4-1.0
.4-1.5
48
mass formula ...
m= d/v
m=v/d
m=d x v
49
Chemistry is used in ENERGY by finding ways to conserve energy, produce energy and store energy
true
false
50
condition of a substance that can be observe/measured w/out changing the substance composition
chemical property
physical property
element property
matter property
51
an atomic orbital might describe at most two electrons.
paulis exclusion rule
aufbau principle
hunds rule
52
cation symbol is...
=
?
-
+
53
determine the # of protons by...
adding the mass # to the atomic #
subtracting the mass # from the atomic #
the atomic number
the mass number
54
row is a column of elements in the periodic table of the chemical elements.
true
false
55
if the principal energy n=4, the # of sub levels is...
2
1
4
3
56
if the principal energy n=2, the # of sub levels is...
1
4
2
3
57
a cation loses electrons
true
false
