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WorksheetsReporting Category 1
Total questions: 100
Worksheet time: 2hrs 13mins
Name
Class
Date
1.
The products are best classified as...
a)
A. two elements
b)
B. one element and one compound
c)
C. two compounds
d)
D. two compounds and one element
2.
Which substance is classified as an ELEMENT?
a)
F. CO
b)
G. H2O
c)
H. CO2
d)
J. H2
3.
Tests involving aluminum, sulfur, and chlorine would show that at normal room temperature...
a)
A. Sulfur is malleable and conducts electricity
b)
B. chlorine is malleable and conducts electricity
c)
C. aluminum is malleable and conducts electricity
d)
D. all three elements are malleable and conduct electricity
4.
Based on the table, which of the following is a nonmetal?
a)
Sample 1
b)
Sample 2
c)
Sample 3
d)
Sample 4
5.
What is the density of the sample?
a)
F. 0.15 g/cm3
b)
G. 32 g/cm3
c)
H. 13 g/cm3
d)
J. 6.7 g/cm3
6.
What is the correct formula for density?
a)
Density = mass/volume
b)
Density = volume/mass
c)
Density= volume x mass
d)
Density= Mass + volume
7.
Which consumers would receive the greatest amount of energy captured by producers in their food chains?
a)
Wedge-tailed eagles
b)
Chuditch
c)
Ring-tailed opposums
d)
Eucalyptus trees
8.
Which of the following is an organic compound?
a)
Urea, CH4N2O
b)
Ammonium Sulfide, (NH4)2S
c)
Silane, SiH4
d)
Sodium Chloride, NaCl
9.
What are the main elements in many organic compounds?
a)
Helium, Carbon, Sodium
b)
Sodium, Hydrogen, Nitrogen
c)
Carbon, Hydrogen, Oxygen
d)
Radon, Oxygen, Helium
10.
Which is a physical change in the digestive system?
a)
Saliva converting starch to sugar molecules
b)
Digestive enzymes breaking down proteins
c)
Bacteria converting lactose into simple sugars
d)
Teeth grinding an almond into smaller pieces
11.
An atom has 36 protons, 36 electrons, and a mass number of 84. How many neutrons are in this atom?
a)
84 - 36 = 48 neutrons
b)
mass# = 84 neutrons
c)
36+36= 72 neutrons
d)
36 protons= 36 neutrons
12.
What subatomic particles are found INSIDE the nucleus of an atom?
a)
protons & neutrons
b)
protons & electrons
c)
neutrons & electrons
d)
electrons & metals
13.
An atom consists of mainly open space with...
a)
protons orbiting a nucleus made of electrons and neutrons
b)
electrons orbiting a nucleus of protons and neutrons
c)
protons and neutrons orbiting electrons
d)
electrons and neutrons orbiting neutrons
14.
What type of particles are found in the cloud surrounding the atom's nucleus?
a)
positively and negatively charged particles
b)
negatively charged particles only
c)
neutral and positively charged particles
d)
positively charged particles only
15.
What is the mass number of a potassium (K) atom that has 20 neutrons?
a)
18
b)
19
c)
20
d)
39
16.
Which of the following describes and electron?
a)
positive & more mass than a neutron
b)
neutral & same mass as a proton
c)
negative & less mass than a proton
d)
negative & same mass as a neutron
17.
What is the charge of a proton?
a)
positive
b)
negative
c)
neutral
d)
no charge
18.
the central region of an atom where its neutrons and protons are is called its
a)
nucleus
b)
electron cloud
c)
core
d)
center
19.
an atom with atomic number 6 would have how many protons
a)
6
b)
12
c)
3
d)
cannot be determined
20.
The atoms of a certain element contain 11 protons and 1 valence electron. What is the identity and reactivity of the element?
a)
Sodium - highly reactive
b)
Fluorine - not very reactive
c)
Sodium - not very reactive
d)
Fluorine - highly reactive
21.
What characteristic of an element's atoms ALWAYS determines the element's identity?
a)
number of protons
b)
number of neutrons
c)
location of valence electrons
d)
number of valence electrons
22.
What characteristic of an element tells you about its chemical reactivity?
a)
protons
b)
atomic mass
c)
density
d)
valence electrons
23.
An atom of which element is described in the table?
a)
Radon (Rn)
b)
Cadmium (Cd)
c)
Rubidium (Rb)
d)
Astatine (At)
24.
An atom of which element is represented by this model?
a)
Boron (B)
b)
Carbon (C)
c)
Neon (Ne)
d)
Sodium (Na)
25.
Which of these elements is in this group?
a)
Lithium
b)
Strontium
c)
Aluminium
d)
Silicon
26.
Which two elements on the periodic table are in the same period?
a)
Sn and Rb
b)
F and Cl
c)
K and Ba
d)
Se and Te
27.
Elements in the same group have the same number of...
a)
protons
b)
neutrons
c)
electrons
d)
valence electrons
28.
Which two atoms are of elements in the same group on the periodic table?
a)
Atom 1 and Atom 2
b)
Atom 1 and Atom 4
c)
Atom 2 and Atom 3
d)
Atom 3 and Atom 4
29.
Element or compound?
O2
O2
a)
Element
b)
Compound
30.
Which of the following is a compound?
a)
Co
b)
O2
c)
C
d)
CO2
31.
How many atoms are there TOTAL in:
H2SO4
H2SO4
a)
6
b)
5
c)
7
d)
3
32.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
33.
How many Sodium (Na) are in 6NaCl?
a)
1
b)
12
c)
6
34.
How many Aluminum atoms are in Al2O3?
a)
3
b)
2
c)
5
35.
How many O's are in Al₂(SO₄)₃
a)
4
b)
12
c)
7
d)
24
36.
How many atoms are Carbon are in the compound C2H8O ?
a)
8
b)
2
c)
1
d)
11
37.
How many Hydrogen are in 4H2O?
a)
6
b)
8
c)
2
d)
4
38.
2H2 + O2 ----> 2H2O What is the product?
a)
------>
b)
2H2O
c)
2H2+ O2
39.
2H2 + O2 --------> 2H2O What are the reactants?
a)
----->
b)
2H2O
c)
2H2 +O2
40.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
41.
vertical columns in the periodic table are _________ of elements with similar properties.
a)
groups
b)
periods
42.
_______ are horizontal rows of elements that contain increasing numbers of protons and electrons.
a)
groups
b)
periods
43.
Elements that have properties of both metals and nonmetals are _____
a)
metals
b)
metalloids
c)
nonmetals
44.
Which have the same number of nitrogen atoms?
a)
A. Formulas I and III
b)
B. Formulas I and IV
c)
C. Formulas II and III
d)
D. Formulas I, II, and V
45.
How many atoms are in the reactant side of the equation?
a)
36
b)
24
c)
12
d)
6
46.
In which of these compounds are there twice as many oxygen atoms and hydrogen atoms?
a)
H3PO4
b)
H2SO4
c)
HClO3
d)
H2O
47.
How many sulfur atoms are in the formula for sodium sulfate Na2SO4?
a)
1
b)
2
c)
6
d)
7
48.
How many atoms are in a molecule of serotonin? C10H12N2O
a)
25
b)
24
c)
4
d)
22
49.
Which process is a physical change?
a)
Rusting iron
b)
Burning coal
c)
Tarnishing silver
d)
Melting ice
50.
A chemical change creates a ______.
a)
change in volume
b)
new substance
c)
mixture
d)
solution
51.
A teacher is demonstrating physical and chemical changes to her class. Which action should she use to demonstrate a chemical change?
a)
cutting a piece of paper
b)
folding a piece of paper
c)
tearing a piece of paper
d)
burning a piece of paper
52.
A group of students investigated physical and chemical changes using paper. The students recorded their observations in a table.
Which student correctly recorded all the changes that took place?
Which student correctly recorded all the changes that took place?
a)
Student 1
b)
Student 2
c)
Student 3
d)
Student 4
53.
The smell made from a decomposing fish.
a)
Chemical Change
b)
Physical Change
54.
Green bananas turning yellow on their own as they ripen.
a)
Chemical Change
b)
Physical Change
55.
a copper penny turning greenish after a few years.
a)
Chemical Change
b)
Physical Change
56.
An gel ice pack getting cold after you put it in the freezer for an hour.
a)
Chemical Change
b)
Physical Change
57.
Melting an ice cube
a)
Chemical Change
b)
Physical Change
58.
Which is an example of a chemical reaction?
a)
paper cut into small pieces
b)
chocolate melting in a pan
c)
flour and sugar mixed in a bowl
d)
cookies baking in an oven
59.
Which of the following describes a precipitate?
a)
a liquid forms when a block of metal is heated
b)
a solid forms when one liquid is poured into another
c)
a gas forms when a solid is placed in a liquid
d)
bubbles form when an acid is poured on a rock
60.
Which substance likely caused a new substance to be formed when mixed with water?
a)
Substance 1
b)
Substance 2
c)
Substance 3
d)
Substance 4
61.
In which investigation is it least likely that the liquids reacted chemically?
a)
1
b)
2
c)
3
d)
4
62.
Which is not balanced?
a)
F
b)
G
c)
H
d)
J
63.
Which is the balanced equation for photosynthesis?
a)
A
b)
B
c)
C
d)
D
64.
Which type of objects would float?
a)
Those heavier than water
b)
Those with the same density as water
c)
Those less dense than water
d)
Those that are only made of gas
65.
**
a)
one of the original compounds came out of solution
b)
the solutions reacted chemically
c)
some of the water froze into ice crystas
d)
rapid evaporation of water occurred, leaving a solid
66.
(8.5A) Which of these best describes one of the subatomic particles that could be found at location X in the model of an atom shown above?
a)
It has mass but no charge.
b)
It has no mass and a positive charge.
c)
It has a large mass and a negative charge.
d)
It has no mass and an equal number of positive and negative charges.
67.
Which of the following does NOT describe metals?
a)
shiny
b)
good conductors
c)
malleable
d)
dull
68.
Nonmetals are
a)
good conductors
b)
shiny
c)
malleable
d)
poor conductors
69.
Elements on the right side of the of the zigzag line are normally?
a)
non metals
b)
metals
c)
metalloids
d)
rare earth metals
70.
what does the 6 represent?
a)
Atomic mass
b)
atomic number
c)
chemical symbol
d)
element name
71.
most of the elements on the periodic table are
a)
non metals
b)
metals
c)
metalloids
d)
none
72.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
73.
Most of the mass in an atom is concentrated in the
a)
electrons.
b)
nucleus.
c)
protons.
d)
empty space.
74.
The periodic table has __ periods.
a)
18
b)
8
c)
2
d)
7
75.
The periodic table has __ groups.
a)
8
b)
7
c)
18
d)
2
76.
Group 18 elements are known as the _____ _____ and have full valence shells.
a)
royal gases.
b)
supreme solids.
c)
noble gases.
d)
legit liquids.
77.
Elements in the same ________ are more chemically similar.
a)
group
b)
period
c)
club
d)
table
78.
The atomic number of this pictured element is
a)
28
b)
58.6934
c)
Ni
d)
Nickel
79.
An atom is made up of mostly
a)
protons.
b)
neutrons.
c)
empty space.
d)
electrons.
80.
Generally, as you move from left to right across the periodic table, elements become
a)
less stable.
b)
more stable.
81.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
None of these
82.
The atomic mass of a single atom is
a)
the sum of the protons and neutrons in the atom.
b)
twice the number of protons in one atom of the element.
c)
a ratio based on the mass of a carbon-12 atom.
d)
a weighted average of the masses of the element’s isotopes.
83.
An atom has 10 protons and a mass of 18. It has __ neutrons
a)
10
b)
18
c)
28
d)
8
84.
The element symbol for sodium:
a)
Na
b)
N
c)
S
d)
So
85.
Gold has how many protons?
a)
47
b)
79
c)
31
d)
17
86.
Where on the periodic table are the metalloids found?
a)
Right Side
b)
Along the Zig Zag Line
c)
Right Side
87.
Where on the periodic table are most of the metals found?
a)
Right Side
b)
Along the Zig Zag Line
c)
Left Side
88.
The symbol for chlorine is C.
a)
true
b)
false
89.
How many Valence Electrons does Argon have?
a)
2
b)
3
c)
8
d)
18
90.
How many energy shells does Phosphorus (P) have?
a)
2
b)
3
c)
5
d)
15
91.
Which element has 2 energy shells and 8 valence electrons?
a)
He
b)
O
c)
Ne
d)
Ni
92.
Water is an example of:
a)
compound
b)
element
c)
solution
93.
Are fireworks exploding a physical or chemical change?
a)
phyiscal
b)
chemical
94.
Is frying an egg a physical or chemical change?
a)
chemical
b)
physical
95.
Is salt (2NaCI) a compound or a element
a)
Compound
b)
element
96.
Here are 5 cubic centimeters (cm3). All together they have a mass of 20 g what is the density?
a)
20 g/cm3
b)
80 grams
c)
4 g/cm3
d)
80 g/cm3
97.
What is the mass of an atom with 7 protons, 8 neutrons, and 7 electrons?
a)
1
b)
7
c)
15
d)
22
98.
Metals are good conductors of heat and electricity.
a)
true
b)
false
99.
What element is represented in this Bohr Model?
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
100.
Beryllium is in group number______.
a)
Group 2
b)
Group 3
c)
Group 4
d)
Group 7
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