Worksheets22-23 Anthony Chemistry Mid-Term Review
Total questions: 231
Worksheet time: 4hrs 25mins
( 1 cm = 10 mm)
6 kg = _____ g
6
6000
600
.006
Convert 4 km to mm
400 mm
0.004 mm
400,000
4,000,000
8 x 104
0.0000378
520,000,000
1.245 x 103
Is the following number written in proper scientific notation? Why? 12.45 x 10-6
Why do we use the metric system in science?
Which of the following is the abbriviation from decigrams
dag
dg
deg
dig
Which of the following is the abbreviation of millimeter?
m
mm
mim
milm
Which variable of a graph does the scientist control
Dependent variable
Independent variable
sign variable
respect variable
Which axis does the dependent variable go on?
z
y
x
p
Which of the following is not part of a graph
Best fit line
Title
Scale
All are part of a graph
9, 7, 2, 4, 3, 5, 9, 6, 8, 0, 3, 8
8.9, 9.4, 8.6, 9.1
18, 19, 17, 14, 20, 20, 15, 21
34, 57, 58, 56, 21
5, 0, 9, 9, 3, 0, 5, 5, 4
The attendance for the basketball game was estimated to be 15,000 people but 12,500 people attended. What was the percent error?
16.67%
20%
2500%
80%
(100 cm = 1 m)
What is the volume of this shape?
(a)
The metric unit of measurement for length is the:
tonne
What is the definition of length?
How much matter an object has
How long an object is
How much space an object takes up
How compact an object is
What is the definition of volume?
How much matter an object has
How long an object is
How much space an object takes up
How compact an object is
Which of the following is used to measure length?
Ruler
Scale
Graduated cylinder
Beaker
Horseplay and practical jokes in the lab are
Always against the rules
Okay
Not Dangerous
Which of the following is NOT an acceptable way to determine the identity of a chemical?
Sight
Reading the label
Asking the teacher
Taste
There is a fire extinguisher in the lab
True
False
Which of the following should you always do before leaving the lab?
Read the lab
Ask the teacher what to do
Clean up your materials
Put your goggles on
Which of the following is the equation to calculate the volume of a regular shaped object?
Mass/Volume
Actual - Estimate
Length x Width x Height
volume/mass
The butterfly is on a pink flower.
What is this?
Element
Compound
Heterogeneous MIxture
Homogeneous Mixture
Element
Compound
Homogeneous Mixture
Heterogeneous MIxture
What is it?
Pure Substance
Mixture
Pure Substance
MIxture
What is it?
Pure Substance
Mixture
Which of the following is a pure substance?
carbon
pizza
salad
sand
What kind of change occurs if matter changes in amount, size, or shape?
substance change
chemical change
physical change
elemental change
atomic number
gas at room temperature, low boiling point
a subatomic particle that has a negative charge
number or protons and neutrons
the number of protons in the nucleus of an atom
atomic number
gas at room temperature, low boiling point
a subatomic particle that has a negative charge
number or protons and neutrons
the number of protons in the nucleus of an atom
Calculate the average atomic mass of silver.
106.38649amu
111.91896amu
107.8677amu
121
Magnesium exists as the three isotopes shown. What is the average atomic mass of magnesium?
20.74 amu
22.56 amu
18.39 amu
24.31
To calculate average atomic mass, you need
the atomic mass of each isotope
the percent abundance of each isotope
the atomic mass and percent abundance of each isotope
to find the average of the atomic masses of each isotope
Chlorine has two naturally occurring isotopes, Cl-35 and Cl-37, The atomic mass of chlorine is 35.45. Which of these two isotopes of chlorine is more abundant?
Cl-35
Cl-37
Cannot be determined from the information provided.
An element has three isotopes. Given the abundances and relative masses, calculate the average atomic mass and determine (from the periodic table) which element it is.
Abundances | Relative masses
0.005% | 234.04 amu
0.720% | 235.04 amu
99.275% | 238.05 amu
Uranium (#92, Atomic Mass: 238.03 amu)
Fluorine (#9, Atomic Mass: 19.00 amu)
Mercury (#89, Atomic Mass: 200.59 amu)
Polonium (#84 209 amu)
What is the smallest unit of matter? It is composed of protons and neutrons, held together in the nucleus, and electrons around the nucleus in different electron orbitals, which form an electron cloud.
cell
nucleus
atom
electron
What is a subatomic particle with a positive charge that is in the nucleus of an atom?
neutron
proton
electron
valence electron
What is a subatomic particle without an electric charge, located in the nucleus of an atom?
neutron
proton
electron
valence electron
What is a subatomic particle with a negative charge? It is found in the electron cloud surrounding the nucleus.
neutron
proton
electron
electron cloud
What is the center of an atom containing protons and neutrons?
nucleus
neutron
proton
electron cloud
What mass does a neutron have?
1 amu
0 amu
-1 amu
+2 amu
How many electrons does this atom have?
2
4
6
10
The Atomic mass of Fe
55.845
56
55
56.845
The Atomic mass of Cl
34.45
35.45
36.45
35.46
The atomic mass of K
38
39
38.098
39.098
The mass number of Zn
56
57
65
75
The symbol for cobalt
CO
Cb
Co
cO
The mass number of B
9
10
11
12
The Atomic mass of Cu
36.546
53.546
63.546
56.546
How many neutron are in the atom "K"?
29
19
58
20
How many neutrons are in Magnesium?
36
12
24
6
How many electrons are in Aluminium?
40
27
13
14
How many protons are in Silicon?
7
42
28
14
How many neutrons are in Phosphorus?
16
15
31
46
How many electrons are in Sulfur?
32
16
48
8
How many protons are in Chlorine?
35
18
17
52
How many neutrons are in Argon?
18
40
58
22
How many electrons are in Potassium?
19
20
58
39
How many protons, neutrons, and electrons are in Oxygen?
Protons = 8; Neutrons = 16; Electrons = 8
Protons = 8; Neutrons = 8; Electrons = 8
Protons = 16; Neutrons = 8; Electrons = 16
Protons = 16; Neutrons = 24; Electrons = 16
The elements in this family are soft, silvery, and very reactive with water.
Alkaline Earth Metals
Alkali Metals
Transition Metals
Lanthanides
What group is the family found? These halides are very reactive and almost have full outer energy level/shell.
1
2
16
17
The is family has properties of both metals and nonmetals.
Alkali
Halogens
Nonmetals
Metalloids
The horizontal row on the periodic table is called a
group
family
period
A vertical column is called...
group
tower
period
Which of the following is an Alkali Metal?
Magnesium
Chromium
Sodium
Which of the following is the most reactive group of metals?
Alkali
Alkaline Earth
Halogen
Which of the following groups is inert?
Alkali
Transition Metals
Noble Gas
What is the chemical symbol for Hydrogen
H
He
Hy
Hg
What element has the symbol Al
Argon
Aluminium
Silver
Gold
What is the symbol for Carbon
Ca
C
Co
Cr
What is the symbol for Neon
No
Nn
Ne
N
Which element has the symbol Li
Aluminum
Lithium
Palladium
Gallium
What is the symbol for Potassium
P
Po
K
Pt
Which element has the symbol O
Osmium
Oxygen
Oganesson
Neon
Which element has the symbol Be
Boron
Berillium
Bromine
Beryllium
Which element has the symbol Si
Silicon
Sulfur
Scandium
Strontium
Which element has the symbol N
Nitrogen
Neon
Sodium
Nickel
Which element has the symbol Cl
Carbon
Chlorine
Cadium
Copper
What is the symbol for Sodium
S
Au
So
Na
What is the symbol for Magnesium
Mn
Mc
Mg
Md
Which element has the symbol He
Hydrogen
Hafnium
Helium
Mercury
What is the symbol for Calcium
Ca
C
Cl
Cm
What is the symbol for Zinc?
Z
Zi
ZN
Zn
What is the symbol for Copper?
CU
Cp
Cu
Cr
What is the symbol for Nickel?
Ni
N
Nl
Nc
What is the symbol for Iron?
Ir
In
Fe
FE
What is the symbol for Titanium?
T
Tn
Ti
Tl
Sn
tin
sulfur
iron
sodium
Gold
Go
Gl
AU
Au
Pb
Gold
Lead
peanut butter
Paribium
Nickel
Ni
N
Nl
Nc
Mercury
Me
Hg
HG
ME
Iodine
Ie
I
Id
Io
What is the symbol for Arsenic?
As
Ac
Au
Ar
