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WorksheetsIPC Fall Final Exam Review Part 1
Total questions: 30
Worksheet time: 15mins
Name
Class
Date
1.
A chemical symbol represents the ____ of an element.
a)
name
b)
reaction
c)
group reaction d. structure
d)
structure
2.
A sub atomic particle that moves around the nucleus is a(n) ____.
a)
electron
b)
proton
c)
neutron
d)
quark
3.
The nucleus of most atoms is composed of
a)
tightly packed protons
b)
tightly packed neutrons
c)
tightly packed protons and neutrons
d)
loosely connected protons and electrons
4.
A positively charged particle found in the nucleus of the atom.
a)
electron
b)
proton
c)
neutron
d)
quark
5.
An atom is electrically neutral because
a)
neutrons balance the protons and electrons.
b)
nuclear forces stabilize the charges.
c)
the numbers of protons and electrons are equal.
d)
the numbers of protons and neutrons are equal.
6.
The atomic number of oxygen, 8, indicates that there are eight
a)
protons in the nucleus of an oxygen atom.
b)
oxygen nuclides
c)
neutrons outside the oxygen atom's nucleus.
d)
energy levels in the oxygen atom's nucleus.
7.
The total number of protons and neutrons in the nucleus of an atom is its
a)
atomic number
b)
Avogodro constant
c)
mass number
d)
number of neutrons
8.
What is the atomic number for aluminum using a periodic table?
a)
13
b)
14
c)
26.98
d)
26.9815
9.
An atom of Potassium has 19 protons and 20 neutrons. What is its mass number?
a)
10
b)
19
c)
39
d)
20
10.
A neutral atom of Silicon contains
a)
16 electrons
b)
28.09 electrons
c)
14 electrons
d)
38 electrons
11.
How many electrons are needed in the outer energy levels of most atoms for the atom to be chemically stable?
a)
2
b)
4
c)
6
d)
8
12.
The chemical bond formed when two atoms share electrons is called a(n)
a)
ionic bond
b)
orbital bond
c)
Lewis structure
d)
covalent bond
13.
An octet is equal to
a)
2
b)
4
c)
5
d)
8
14.
What type of bond is formed by a reaction between one magnesium atom and two chlorine atoms?
a)
covalent
b)
ionic
c)
metallic
d)
polar covalent
15.
Based on their location on the periodic table, which of the following pairs of atoms would most likely share electrons when bonding?
a)
Al and F
b)
Ca and I
c)
Na and Cl
d)
P and O
16.
Based on their location on the periodic table, which of the following pairs of atoms would most likely form ionic bonds?
a)
B and N
b)
Li and O
c)
P and Br
d)
Sn and As
17.
An atom that has lost or gained electrons and has a charge is called an
a)
covalent
b)
Ion
c)
polyatomic
d)
magnetic
18.
The electrons involved in the formation of a chemical bond are called
a)
Lewis electrons
b)
dipoles
c)
s electrons
d)
valence electrons
19.
The ___________ tells you how many electrons an atom must gain, lose or share to become stable.
a)
atomic number
b)
ionic number
c)
oxidation number (charge)
d)
atomic mass
20.
The elements that make up a compound and the exact number of atoms of each element in a unit of the compound can be shown in a ____.
a)
chemical formula
b)
chemical symbol
c)
subscript
d)
superscript
21.
In a chemical formula, the number of each type of atom in the compound is shown by numbers called ____.
a)
superscripts
b)
chemical symbols
c)
oxidation numbers
d)
subscripts
22.
What is the total number of atoms in the compound Ca(ClO3)2?
a)
2
b)
3
c)
5
d)
9
23.
How many hydrogen atoms are present in one molecule of ammonium acetate, NH4C2H3O2?
a)
4
b)
7
c)
11
d)
12
24.
What is the small whole number that appears in front of a formula in a chemical equation?
a)
a subscript
b)
a superscript
c)
a ratio
d)
a coefficient
25.
Which of the following equations shows conservation of mass?
a)
2K2CrO4 + Pb(NO3)2 --- 2KNO3 + PbCrO4
b)
2K2CrO4 + Pb(NO3)2 --- KNO3 + PbCrO4
c)
K2CrO4 + Pb(NO3)2 --- 2KNO3 + PbCrO4
d)
K2CrO4 + Pb(NO3)2 --- KNO3 + PbCrO4
26.
Each substance on the left side of the arrow in a chemical equation is a
a)
catalyst
b)
coefficient
c)
reactant
d)
product
27.
A chemical reaction in which heat energy is released is _____.
a)
endothermic
b)
exothermic
c)
flammable
d)
a formula
28.
In a chemical equation, each substance to the right of the arrow in a chemical equation is a(n)
a)
catalyst
b)
inhibitor
c)
reactant
d)
product
29.
If heat must be added to a chemical reaction for the reaction to take place and it feels colder, the reaction is
a)
endothermic
b)
balanced
c)
exothermic
d)
reactant
30.
To balance a chemical equation, it may be necessary to adjust the
a)
coefficients
b)
subscripts
c)
formulas of the products
d)
number of number of products
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