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Principles of
Chemistry 1 Final
Exam Study Guide
Comprehensive
Questions (Frequently
Tested) with Verified
Answers Graded A+
1/
18
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1. If matter is uniform throughout, cannot be separated into other
substances by physical processes, but can be decomposed into other
substances by chem- ical processes, it is... Answer: a compound
2. All atoms of a given element are identical to each other and
different from those of other elements, compounds are formed when
atoms of different ele- ments combine, each element is composed
of tiny, indivisible particles called atoms, and atoms of an element
are not changed into different types of atoms by chemical reactions.
Answer: Dalton's atomic theory
3. Momentum is defined as the product of mass and velocity. What
is the SI unit for momentum? Answer: (kg*m)/s
4. A neutral atom of the isotope 31S consists of how many protons,
neutrons, and electrons? Answer: 16 protons, 31 neutrons, and 16 electrons
5. How many cubic centimeters of are containing 0.22% gold must
be processed to obtain $100 worth of gold? The density of the ore is
8.0 g/cm^3 and the price of gold is $418 per troy ounce. Note
Answer: 14.6 troy ounce = 1.0 ordinary pound called an avoiupois
1/
18
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pound, and i pound = 454 grams Answer: 4.20*10^2 cm^3
6. Express the temperature, 422.35 K, in degrees Celsius and in
degrees Fahren- heit. Answer: 149.20 C and 300.56 F
7. What does the law of constant composition apply to? Answer:
compounds
8. What does the atomic number indicate? Answer: the number of protons or
electrons in a neutral atom
9. What charge does sulfur form an ion with? Answer: -2
10. How many moles of argon atoms is one million argon atoms?
Answer: 1.7*10^-18
11. The heavy subatomic particles, protons and neutrons, reside in
the nucleus.-
Answer: Rutherford nuclear-atom model
12. What are the elements in group 15 known as? Answer: pnictogens
13. Convert 3.337 g/cm^3 to kg/m^3. Answer: 3337 kg/m^3
14. Consider a mixture consisting of sand
in salt water. This mixture could be separated into its three
components (sand, salt, and water) by first
2/
18
Principles of
Chemistry 1 Final
Exam Study Guide
Comprehensive
Questions (Frequently
Tested) with Verified
Answers Graded A+
1/
18
, Contact for further consultation
1. If matter is uniform throughout, cannot be separated into other
substances by physical processes, but can be decomposed into other
substances by chem- ical processes, it is... Answer: a compound
2. All atoms of a given element are identical to each other and
different from those of other elements, compounds are formed when
atoms of different ele- ments combine, each element is composed
of tiny, indivisible particles called atoms, and atoms of an element
are not changed into different types of atoms by chemical reactions.
Answer: Dalton's atomic theory
3. Momentum is defined as the product of mass and velocity. What
is the SI unit for momentum? Answer: (kg*m)/s
4. A neutral atom of the isotope 31S consists of how many protons,
neutrons, and electrons? Answer: 16 protons, 31 neutrons, and 16 electrons
5. How many cubic centimeters of are containing 0.22% gold must
be processed to obtain $100 worth of gold? The density of the ore is
8.0 g/cm^3 and the price of gold is $418 per troy ounce. Note
Answer: 14.6 troy ounce = 1.0 ordinary pound called an avoiupois
1/
18
, Contact for further consultation
pound, and i pound = 454 grams Answer: 4.20*10^2 cm^3
6. Express the temperature, 422.35 K, in degrees Celsius and in
degrees Fahren- heit. Answer: 149.20 C and 300.56 F
7. What does the law of constant composition apply to? Answer:
compounds
8. What does the atomic number indicate? Answer: the number of protons or
electrons in a neutral atom
9. What charge does sulfur form an ion with? Answer: -2
10. How many moles of argon atoms is one million argon atoms?
Answer: 1.7*10^-18
11. The heavy subatomic particles, protons and neutrons, reside in
the nucleus.-
Answer: Rutherford nuclear-atom model
12. What are the elements in group 15 known as? Answer: pnictogens
13. Convert 3.337 g/cm^3 to kg/m^3. Answer: 3337 kg/m^3
14. Consider a mixture consisting of sand
in salt water. This mixture could be separated into its three
components (sand, salt, and water) by first
2/
18
