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PORTAGE LEARNING CHEM 103 MODULE 3 EXAM all in one document
PORTAGE LEARNING CHEM 103 MODULE 3 EXAM all in one document
[Show more]PORTAGE LEARNING CHEM 103 MODULE 3 EXAM all in one document
[Show more]5.1: BONDING 
Atoms are rarely found in their elemental form but are usually found bonded to other 
atoms as part of compounds. A bond is composed of a group of negatively charged 
valence electrons between the atoms that simultaneously attract the positively charged 
nuclei of both atoms. Since the...
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Add to cart5.1: BONDING 
Atoms are rarely found in their elemental form but are usually found bonded to other 
atoms as part of compounds. A bond is composed of a group of negatively charged 
valence electrons between the atoms that simultaneously attract the positively charged 
nuclei of both atoms. Since the...
4.1: ATOMIC STRUCTURE 
Earlier in this course, we explored a very elementary view of atomic structure. We 
learned about protons, neutrons, and electrons (the three elementary particles that 
comprise an atom) and their properties. In this module, we will study these particles in 
detail and learn h...
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Add to cart4.1: ATOMIC STRUCTURE 
Earlier in this course, we explored a very elementary view of atomic structure. We 
learned about protons, neutrons, and electrons (the three elementary particles that 
comprise an atom) and their properties. In this module, we will study these particles in 
detail and learn h...
Thermodynamics is the study of the relationship between heat and other forms of 
energy, particularly mechanical work. Thermochemistry is the part of thermodynamics 
that deals with the quantity of heat given off or absorbed during a chemical reaction. The 
quantity of heat given off or absorbed dur...
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Add to cartThermodynamics is the study of the relationship between heat and other forms of 
energy, particularly mechanical work. Thermochemistry is the part of thermodynamics 
that deals with the quantity of heat given off or absorbed during a chemical reaction. The 
quantity of heat given off or absorbed dur...
1. The combustion of ethanol (C2H5OH) takes place by the following reaction equation. 
 C2H5OH (l) + 3 O2 (g) → 2 CO2 (g) + 3 H2O (g) 
What is the volume of CO2 gas produced by the combustion of excess ethanol by 23.3 grams of 
O2 gas at 25oC and 1.25 atm? 
Your Answer: 
C2H5OH (l) + 3 O2 (g) → ...
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Add to cart1. The combustion of ethanol (C2H5OH) takes place by the following reaction equation. 
 C2H5OH (l) + 3 O2 (g) → 2 CO2 (g) + 3 H2O (g) 
What is the volume of CO2 gas produced by the combustion of excess ethanol by 23.3 grams of 
O2 gas at 25oC and 1.25 atm? 
Your Answer: 
C2H5OH (l) + 3 O2 (g) → ...
1. A sample of hydrogen (H2) gas is collected over water at 35oC and 725 
mm. The volume of the gas collected is 72.0 ml. How many moles of H2 gas 
has been collected? How many grams of H2 gas has been collected? 
Your Answer: 
P(H2) = 725 - P(H2O) (from table) = 725 - 42.2 = 682.8 x 1 atm / 760 mm ...
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Add to cart1. A sample of hydrogen (H2) gas is collected over water at 35oC and 725 
mm. The volume of the gas collected is 72.0 ml. How many moles of H2 gas 
has been collected? How many grams of H2 gas has been collected? 
Your Answer: 
P(H2) = 725 - P(H2O) (from table) = 725 - 42.2 = 682.8 x 1 atm / 760 mm ...
A compound is made up of two or more elements combined in a definite ratio that is 
represented by a molecular formula. Each of these elements has a certain atomic 
weight, which can be found in the periodic table. The sum of the atomic weights of 
the atoms in the molecular formula is called the fo...
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Add to cartA compound is made up of two or more elements combined in a definite ratio that is 
represented by a molecular formula. Each of these elements has a certain atomic 
weight, which can be found in the periodic table. The sum of the atomic weights of 
the atoms in the molecular formula is called the fo...
: MOLECULAR WEIGHT 
A compound is made up of two or more elements combined in a definite ratio that is 
represented by a molecular formula. Each of these elements has a certain atomic 
weight, which can be found in the periodic table. The sum of the atomic weights of 
the atoms in the molecular form...
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Add to cart: MOLECULAR WEIGHT 
A compound is made up of two or more elements combined in a definite ratio that is 
represented by a molecular formula. Each of these elements has a certain atomic 
weight, which can be found in the periodic table. The sum of the atomic weights of 
the atoms in the molecular form...
THE LIQUID STATE OF MATTER 
Liquid water is common, but because liquids can exist only within a relatively 
narrow range of temperatures and pressures, the liquid state is the least 
common state of matter in the universe. For example, of the 92 naturally 
occurring elements, 79 are solids, 11 are g...
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Add to cartTHE LIQUID STATE OF MATTER 
Liquid water is common, but because liquids can exist only within a relatively 
narrow range of temperatures and pressures, the liquid state is the least 
common state of matter in the universe. For example, of the 92 naturally 
occurring elements, 79 are solids, 11 are g...
Question 1 
Not yet graded / 10 pts 
Click this link to access the Periodic Table. This may be helpful throughout 
the exam. 
A reaction between HCl and NaOH is being studied in a styrofoam coffee cup 
with a lid and the heat given off is measured by means of a thermometer 
immersed in the reaction ...
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Add to cartQuestion 1 
Not yet graded / 10 pts 
Click this link to access the Periodic Table. This may be helpful throughout 
the exam. 
A reaction between HCl and NaOH is being studied in a styrofoam coffee cup 
with a lid and the heat given off is measured by means of a thermometer 
immersed in the reaction ...
Write the subshell electron configuration (i.e.1s2 2s2 
, etc.) for the Ni28 atom. 
Your Answer: 
Ni28 = 1s2 
, 2s2 
, 2p6 
, 3s2 
, 3p6 
,4s2 
, 3d8 
↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ 
↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ 
↑ ↓ ↑ ↑ 
1s 2s 2p 3s 3p 4s 3d 
Ni28 = 28 el...
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Add to cartWrite the subshell electron configuration (i.e.1s2 2s2 
, etc.) for the Ni28 atom. 
Your Answer: 
Ni28 = 1s2 
, 2s2 
, 2p6 
, 3s2 
, 3p6 
,4s2 
, 3d8 
↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ 
↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ 
↑ ↓ ↑ ↑ 
1s 2s 2p 3s 3p 4s 3d 
Ni28 = 28 el...
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