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ChELE > Gen Chem > Flashcards

Gen Chem Flashcards

1
Q

Another term for Boyle’s Law

a. General Gas Equation
b. Avogadro’s Law
c. Mariotte’s Law
d. Amonton’s Law

A

c

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2
Q

Another term for Gay Lussac’s Law

a. General Gas Equation
b. Avogadro’s Law
c. Mariotte’s Law
d. Amonton’s Law

A

d

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3
Q

Arrange the proton, neutron and electron in increasing mass.

a. proton < electron < neutron
b. electron < proton < neutron
c. electron < neutron < proton
d. neutron < electron < proton

A

b

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4
Q

The constant known as the fundamental number of hydrogen is the

a. Rydberg constant
c. Fine-structure constant
b. Planck’s constant
d. Balmer constant

A

d

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5
Q

In Rutherford’s experiment, which of the following is true?

a. the proton is evenly distributed in the nucleus of an atom
b. the atom is almost an empty space
c. the nucleus contains proton, neutron and electron
d. all of the these

A

b

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6
Q

The region in space where an electron is most likely to be found is called

a. orbital
b. energy level
c. shell
d. nucleus

A

a

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7
Q

Atoms with the same atomic number but different mass number is called

a. isobars
b. isotopes
c. isotherms
d. isoelectric

A

b

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8
Q

The quantum number that has an allowable value of 0, 1, 2, etc. is the

a. Magnetic Quantum Number
b. Spin Quantum Number
c. Angular Momentum Quantum Number
d. Principal Quantum Number

A

c

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9
Q

It states that no two atoms will have the same set of quantum numbers.

a. Heisenberg Uncertainty Principle
b. Pauli’s Exclusion Principle
c. Aufbau Building Up Principle
d. Hund’s Rule of Multiplicity

A

b

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10
Q

The change in energy when an electron is accepted by a gaseous atom to form an anion.

a. Electronegativity
c. Ionization Energy
b. Electron Affinity
d. Activation Energy

A

b

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11
Q

Which of the following properties do not depend on the electronic configuration of the atoms?

a. physical
b. chemical
c. nuclear
d. none of the above

A

c

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12
Q

The theory that states that bonding is caused by overlapping of two atomic orbitals.

a. Valence Bond Theory
c. Vital Force Theory
b. Molecular Orbital Theory
d. Valence Shell Electron-Pair Repulsion

A

a

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13
Q

It pertains to single bond, double bond, triple bond and those intermediate between single and double bonds, etc.

a. Bond Order
b. Bond Length
c. Bond Strength
d. Bond Degree

A

a

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14
Q

Type of equilibrium that exists between similar phases is called

a. physical equilibria
b. homogeneous equilibria
c. chemical equilibria
d. heterogeneous equilibria

A

b

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15
Q

It is equivalent to the rate of disintegration of 1 gram of radium

a. becquerel
b. curie
c. gray
d. rem

A

b

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16
Q

Which of the ff particles cannot be accelerated in a particle accelerator

a. alpha
b. electron
c. neutron
d. proton

A

c

17
Q

What is the empirical formula formula of the Human DNA?

A: C31H52034N18P6
B: C37H46021N10P7
C: C34H55036N19P2
D: C39H50O22N15P3

A

D

18
Q

Which among the following polymers is the most suitable in creating the most effective bulletproof vest?

A: Polymethacrylate Fiber
B: Polyamide Fiber
C: Polycarbonate Fiber
D: Polyethylene Fiber

A

D

• Polymethacrylate Fiber - radiation protection

• Polyamide Fiber - old material

• Polycarbonate Fiber - bullet proof windows
ex: Bisphenol-A (discontinued catalyst for polymerization), Bisphenol-F

19
Q

Matter cannot be created nor destroyed but can only change from one form to another

a. Law of Conservation of Mass
b. Law of Definite Composition
c. Law of Multiple proportions

A

a

• Law of Conservation of Mass
- Antoine Lavoisier

• Law of Definite Composition
- Joseph Louis Proust
- regardless of a substance extensive amount the percent content of its component is constant.

• Law of Multiple proportions
- John Dalton
- Atoms have the tendency to combine with one another in appreciable whole number integers, each one being a distinct compound

20
Q

Who discovered the electron

a. George Stoney
b. Robert Millikan
c. Ernest Rutherford
d. JJ Thomson

A

c

• George Stoney - coined the term electron

• Robert Millikan - identified the charge of an electron using oil drop experiment

• Ernest Rutherford - discovered proton

• James Chadwick - discovered neutron

21
Q

geiger marsden experiment

a. cathod ray
b. gold foil
c. oil drop
d. nota

A

b

geiger-marsden experiment or gold foil experiment done

22
Q

Energy that binds the electron to the surface of the metal sheet

a. photoelectron
b. threshold frequency
c. work function
d. kinetic energy

A

c

23
Q

it is the minimum frequency that a light must possess to initiate the photoelectric effect

a. photoelectron
b. threshold frequency
c. work function
d. kinetic energy

A

b

24
Q

Weakest Intermolecular force

a. LDF
b. Dipole-Dipole
c. Hydrogen bonding

A

a

25
Q

Discovered entropy and described its behavior

a. Ludwig Boltzmann
b. Rudolf Clausius
c. William Ramsay
d. Ernest Rutherford

A

b

• Ludwig Boltzmann - Defined entropy

26
Q

Defined entropy

a. Ludwig Boltzmann
b. Rudolf Clausius
c. William Ramsay
d. Ernest Rutherford

A

a

• Rudolf Clausius - Discovered and described the behavior of entropy

27
Q

Gustav Kirchoff discovered these compounds EXCEPT:

a. Caesium
b. Rubidium
c. Radon
d. Helium

A

c

Gustav Kirchoff discovered: (R-C-H)
1. Rubidium (Rubidius - deep red)
2. Caesium (Caeius - sky blue)
3. Helium (with discrepancy)

Radon - discovered by WILLIAM RAMSAY and FREDERICK SADDY

28
Q

William Ramsay discovered _____ with Frederick Saddy

a. Helium
b. Argon
c. Radon
d. Neon

A

c

William Ramsay discovered:
ArRaHeNeKryXe
1. Argon
2. Radon - with Frederick Saddy
3. Helium
4. Neon, Krypton, Xenon - with Morris Travers

29
Q

Marie Curie discovered

a. Rubidium, Helium, Caesium
b. Argon
c. Polonium, Radium
d. all of the above

A

c

30
Q

Produced the first artificial nuclide using transmutation

a. Otto hahn
b. Marie Curie
c. Irene Curie
d. None

A

c. Irene Curie and Frederic Joliot: P30

• Transmutation - the process of converting one atom into another by bombarding its nucleus with a different particle

31
Q

What are the five decay series

A
  1. Uranium
  2. Actinium
  3. Thorium
  4. Neptunium
  5. Plutonium
32
Q

Atomic Models

A
  1. John Dalton - solid sphere
  2. JJ Thomson - plum pudding
  3. Ernest Rutherford - nuclear model
  4. Neil Bohr - planetary model
  5. Erwin Schrodinger - electron cloud
33
Q

Which among the following radioactive nuclide is often bombarded with the various isotopes of lead in order to
produce most of the new superheavy
elements?

A: Iodine-131 and Lawrencium-257
B: Chromium-51 and Gallium-67
C: Calcium-48 and Nickel-64- transmutation
D: Selenium-75 and Krypton-81m

A

C

34
Q

In which among the following can a Cherenkov Radiation be observed?

A: In the Water surrounding the core a Nuclear Reactor
B: In the Mushroom
Cloud produced
after a Hydrogen Bomb Explosion
C: In a particle accelerator after the bombardment of two nuclides
D: In the Sun’s Corona during a Solar
Eclipse

A

A

35
Q

Across the three most notorious accidents regarding nuclear power plants: Three Mile Island, Chernobyl, and Fukushima, what is the most common cause for their failure that led to several environmental problems?

A: A leak in the fuel rods initiating an explosion
B: Bursting of reactor due to uncontrolled pressurized steam
C: Loss of proper cooling and/or
moderator
D: Run-off chain reactions of the fissile material

A

C

36
Q

The Bataan Nuclear Power Plant is planned to be retrofitted in hopes of using it for the first time. One point of concern is the material that would be used in the outer portions of the room housing the fuel rods. If the radiation coming from the fuel rods would be a strong beta emission, which material among the following should be utilized?

A: 1.00 cm of Aluminum
B: 7.50 m of Concrete
C: 8.0 mm of Lucite
D: 35.0 m of Lead

A

C

di ko alam bakit. di nadiscuss binigay lang sagot

ChELE (21 decks)

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