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General Chemistry II (CHEM113) ACS Final Question and correct Answers.
The two states that are collectively known as the condensed states are _______. - Ans solid and liquid The attractive forces that exist between all molecules and atoms, and are the forces that hold many solids and liquids together - Ans intermolecular forces Intermolecular forces are only significant at _____. - Ans short distances The state of a sample of matter is determined by the magnitude of __________. - Ans the intermolecular forces present Gases have a ___ density, __...
- Exam (elaborations)
- • 21 pages •
The two states that are collectively known as the condensed states are _______. - Ans solid and liquid The attractive forces that exist between all molecules and atoms, and are the forces that hold many solids and liquids together - Ans intermolecular forces Intermolecular forces are only significant at _____. - Ans short distances The state of a sample of matter is determined by the magnitude of __________. - Ans the intermolecular forces present Gases have a ___ density, __...
ACS Gen Chem 2 Final Exam Study Guide.
C - Where is the hydrophilic (attracted to water) region of the molecule? (A) Region 1 (B) Region 2 (C) Region 3 (D) The three regions are equally hydrophilic C - Which molecule is most soluble in water? D - A solution of NaCl in water has a concentration of 20.5% by mass. What is the molal concentration of the solution? Molar Mass NaCl = 58.44 g/mol (A) 0.205 m (B) 0.258 m (C) 3.51 m (D) 4.41 m B - What is the mole fraction of water in 200 g of 89% (by mass) ethano...
- Exam (elaborations)
- • 12 pages •
C - Where is the hydrophilic (attracted to water) region of the molecule? (A) Region 1 (B) Region 2 (C) Region 3 (D) The three regions are equally hydrophilic C - Which molecule is most soluble in water? D - A solution of NaCl in water has a concentration of 20.5% by mass. What is the molal concentration of the solution? Molar Mass NaCl = 58.44 g/mol (A) 0.205 m (B) 0.258 m (C) 3.51 m (D) 4.41 m B - What is the mole fraction of water in 200 g of 89% (by mass) ethano...
ACS GEN CHEM 1 FINAL Questions and Answers.d
the physical material of the universe. It is anything that has mass and occupies space. - Matter is made up of relatively few elements. - Matter The smallest building block of matter. Smallest particle that retains the chemical property of the element (O, He, S). - Atom Each _______ is made of the same kind of atom - Element Combination of atoms held together in specific shapes - Molecule No fixed volume or shape, conforms to volume and shape of container, is compressib...
- Exam (elaborations)
- • 10 pages •
the physical material of the universe. It is anything that has mass and occupies space. - Matter is made up of relatively few elements. - Matter The smallest building block of matter. Smallest particle that retains the chemical property of the element (O, He, S). - Atom Each _______ is made of the same kind of atom - Element Combination of atoms held together in specific shapes - Molecule No fixed volume or shape, conforms to volume and shape of container, is compressib...
ACS Chemistry Final Exam Latest Study Guide.
Layout of an element (mass # & atomic #) - atomic number = - # of protons mass number = - # of protons + neutrons the number of protons in a neutral atom will equal the - # of electrons how to find the correct number of neutrons - mass number - atomic number Forms of the same elements that differ in amount of neutrons - isotopes What particle, if lost from the nucleus, would NOT cause a change in the atomic number? - a neutron because it has no charge When alp...
- Exam (elaborations)
- • 13 pages •
Layout of an element (mass # & atomic #) - atomic number = - # of protons mass number = - # of protons + neutrons the number of protons in a neutral atom will equal the - # of electrons how to find the correct number of neutrons - mass number - atomic number Forms of the same elements that differ in amount of neutrons - isotopes What particle, if lost from the nucleus, would NOT cause a change in the atomic number? - a neutron because it has no charge When alp...
ACS Gen Chem 1 Exam Study Guide.
Ion - A species of an element in which the number of electrons does not equal the number of protons. Isotope - Each isotope of an atom has a different number of neutrons. Isoelectric - Two atoms with the same charge. Isotopic - Two atoms with the same number of neutrons. Transition Metal Orbitals - The 4s orbital is filled before the 3d orbital, but listed after. Paramagnetic - Atoms that possess a permanent magnetic charge due to the presence of unpaired electrons.
- Exam (elaborations)
- • 3 pages •
Ion - A species of an element in which the number of electrons does not equal the number of protons. Isotope - Each isotope of an atom has a different number of neutrons. Isoelectric - Two atoms with the same charge. Isotopic - Two atoms with the same number of neutrons. Transition Metal Orbitals - The 4s orbital is filled before the 3d orbital, but listed after. Paramagnetic - Atoms that possess a permanent magnetic charge due to the presence of unpaired electrons.
Chemistry Final ACS Exam Questions and Answers.
Accuracy? - Closeness of measurements to the TRUE VALUE of what is being measured Precision? - Closeness of a SET of measurements How do you calculate Percent Error? - I experimental-accepted I ____________________ x 100 accepted value Are zeros infront of non-zero digis significant? - Nope! ex: 0.0071 is only 2 sig figs Are zeros at the end of a number and to the right of the decimal significant? - Yep! ex: 9.100 is 4 sig figs Addition/Subtraction in regards to ...
- Exam (elaborations)
- • 5 pages •
Accuracy? - Closeness of measurements to the TRUE VALUE of what is being measured Precision? - Closeness of a SET of measurements How do you calculate Percent Error? - I experimental-accepted I ____________________ x 100 accepted value Are zeros infront of non-zero digis significant? - Nope! ex: 0.0071 is only 2 sig figs Are zeros at the end of a number and to the right of the decimal significant? - Yep! ex: 9.100 is 4 sig figs Addition/Subtraction in regards to ...
Accuplacer Practice Test with Answers
If a ≠ b and 1/x + 1/a = 1/b, then x = A. 1/b - 1/a B. b - a C. 1/ab D. a - b/ab E. ab/a - b - E The graph of which of the following equations is a straight line parallel to the graph of y = 2x ? A. 4x - y = 4 B. 2x - 2y = 2 C. 2x - y = 4 D. 2x + y = 2 E. x - 2y = 4 - C An equation of the line that contains the origin and the point (1, 2) is A. y = 2x B. 2y = x C. y = x -1 D. y = 2x +1 E. y/2 = x - 1 - A An apartment building contains 12 units consisting of ...
- Exam (elaborations)
- • 22 pages •
If a ≠ b and 1/x + 1/a = 1/b, then x = A. 1/b - 1/a B. b - a C. 1/ab D. a - b/ab E. ab/a - b - E The graph of which of the following equations is a straight line parallel to the graph of y = 2x ? A. 4x - y = 4 B. 2x - 2y = 2 C. 2x - y = 4 D. 2x + y = 2 E. x - 2y = 4 - C An equation of the line that contains the origin and the point (1, 2) is A. y = 2x B. 2y = x C. y = x -1 D. y = 2x +1 E. y/2 = x - 1 - A An apartment building contains 12 units consisting of ...
Accuplacer Practice! Questions and Answers Latest
SENTENCE SKILLS1 The baby was obviously getting too --hot, then Sam did-- what he could to cool her. A) hot, then Sam did B) hot. Sam did C) hot; Sam, therefore, did D) hot; Sam trying to do - B SENTENCE SKILLS2 She hoped to find a new --job. One that-- would let her earn money during the school year. A) job. One that B) job. The kind that C) job, one that D) job, so that it - C SENTENCE SKILLS3 --Knocked sideways, the statue looked-- as if it would fall. A) Knocked sideway...
- Exam (elaborations)
- • 23 pages •
SENTENCE SKILLS1 The baby was obviously getting too --hot, then Sam did-- what he could to cool her. A) hot, then Sam did B) hot. Sam did C) hot; Sam, therefore, did D) hot; Sam trying to do - B SENTENCE SKILLS2 She hoped to find a new --job. One that-- would let her earn money during the school year. A) job. One that B) job. The kind that C) job, one that D) job, so that it - C SENTENCE SKILLS3 --Knocked sideways, the statue looked-- as if it would fall. A) Knocked sideway...
ACCUPLACER Test Question and Answers.
ACCUPLACER Test Question and Answers.
- Exam (elaborations)
- • 25 pages •
ACCUPLACER Test Question and Answers.
Chem 2 ACS final exam best Study Guide.
ideal gas law conditions - low pressure, high temperature boyle's law - p1v1=p2v2 gases are highly _________ - compressible gases expand ________ to fill the container they are placed in - spontaneously the distance between molecules in gases are _____ - far apart in gases 1 mol of any gas at STP is - 22.4 liters the lighter the gas, _____ - the faster the effusion rate
- Exam (elaborations)
- • 6 pages •
ideal gas law conditions - low pressure, high temperature boyle's law - p1v1=p2v2 gases are highly _________ - compressible gases expand ________ to fill the container they are placed in - spontaneously the distance between molecules in gases are _____ - far apart in gases 1 mol of any gas at STP is - 22.4 liters the lighter the gas, _____ - the faster the effusion rate
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