Sample Chem Quiz First Semester

39 Questions | By Hayleieshorse | Last updated: Mar 20, 2022 | Total Attempts: 64

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Sample Chemistry Quiz for first semster finale

Questions and Answers

1.

What did Democritus do?
- A.
  
  Law of definite proportions
- B.
  
  All matter is continuous
- C.
  
  Discovered electron
- D.
  
  All matter is made of "atoms"
- E.
  
  Gold Foil Experiment discovered nucleus
2.

Who is credited with the first atomic theory?
- A.
  
  Dalton
- B.
  
  Rutherford
- C.
  
  Democritus
- D.
  
  Thomson
- E.
  
  Aristotle
3.

Who preformed the cathode ray tube experiment and discovered the electron?
- A.
  
  Dalton
- B.
  
  Rutherford
- C.
  
  Thomson
- D.
  
  Proust
- E.
  
  Newton
4.

Who preformed the gold foil experiment and discovered the nucleus?
- A.
  
  Dalton
- B.
  
  Thomson
- C.
  
  Lavoisier
- D.
  
  Newton
- E.
  
  Rutherford
5.

What did Millikan's Oil Drop Experiment achieve?
- A.
  
  Discovered electron
- B.
  
  Discovered proton
- C.
  
  Discovered atomic mass
- D.
  
  Discovered mass of electron
- E.
  
  Discovered neutron
6.

Given the atomic number 7, and the mass number 15, how many protons, neutrons, and electrons are there in Nitrogen - 15?
- A.
  
  2,2,2
- B.
  
  7,15,7
- C.
  
  7,8,7
- D.
  
  8,7,8
- E.
  
  15,7,15
7.

Calculate the average atomic mass:Mass (amu) Abundance11 97.612 1.713 0.7
- A.
  
  21.602 amu
- B.
  
  100.000 amu
- C.
  
  33.330 amu
- D.
  
  11.031 amu
- E.
  
  1677.559 amu
8.

What is the Electron Configuration of Carbon?
- A.
  
  1S^2 2S^2 2P^2
- B.
  
  1S 2S 3S 4S 5S 6S
- C.
  
  1S 2S 2P
- D.
  
  What the heck is electron configuration? Did we even learn this?
- E.
  
  None of the above
9.

What is the Electron Configuration of Cobalt?
- A.
  
  1S 2S 2P 3S 3P 4S 3D
- B.
  
  1S^2 2S^2 2P^6 3S^2 3P^6 4S^2 3D^7
- C.
  
  2 2 6 2 6 2 7
- D.
  
  1S^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10
- E.
  
  None of the above
10.

The distance from the center of an atom to th 90% probability surface of the electron is a definition of what?
- A.
  
  Melting Point
- B.
  
  Ionization Energy
- C.
  
  Electron Affinity
- D.
  
  Electronegativity
- E.
  
  Atomic Radius
11.

The energy required to remove an electron from an atom is a definition of what?
- A.
  
  Atomic Radius
- B.
  
  Electronegativity
- C.
  
  Electron Affinity
- D.
  
  Ionization Energy
- E.
  
  Melting Point
12.

The attraction of an atom for an electron is a definition of what?
- A.
  
  Ionization Energy
- B.
  
  Melting Point
- C.
  
  Electron Affinity
- D.
  
  Electronegativity
- E.
  
  Atomic Radius
13.

The relative attraction of an atom for a shared pari of electrons is a definition of what?
- A.
  
  Atomic Radius
- B.
  
  Electronegativity
- C.
  
  Melting Point
- D.
  
  Ionization Energy
- E.
  
  Electron Affinity
14.

The temperatures at which the vapor pressures of the solid and the liquid phases of a substance are equal is the definition of what?
- A.
  
  Melting Point
- B.
  
  Atomic Radius
- C.
  
  Ionization Energy
- D.
  
  Electron Affinity
- E.
  
  Electronegativity
15.

Metals have smaller ionization energies than non-metals.
- A.
  
  True
- B.
  
  False
16.

Metals have smaller electron affinities because of the shielding affect compared to non-metals which have larger electron affinities.
- A.
  
  True
- B.
  
  False
17.

Ionic compounds form between two positive ions.
- A.
  
  True
- B.
  
  False
18.

What is the name of NaCl?
- A.
  
  Tin Chloride
- B.
  
  Chlorine Oxide
- C.
  
  Sodium Chlorine
- D.
  
  Sodium Chloride
- E.
  
  Sodium monochloride
19.

What is the corect formula for Barium Bromide?
- A.
  
  Ba Br
- B.
  
  Ba2 Br
- C.
  
  Ba Br2
- D.
  
  IDK
- E.
  
  WTF!?!
20.

An ionic bond has a difference in electronegativities between to molecules of greater than 1.67.
- A.
  
  True
- B.
  
  False
21.

What is the name of Co O₂ ?
- A.
  
  Cobalt Oxide
- B.
  
  Cobalt (IV) Oxide
- C.
  
  Cobalt (II) Oxide
- D.
  
  Cobalt Oxygen
22.

Silver always forms an ion of 1+
- A.
  
  True
- B.
  
  False
23.

Zinc always forms an ion of 2+
- A.
  
  True
- B.
  
  False
24.

A covalant compound is only between non-metals.
- A.
  
  True
- B.
  
  False
25.

What is the name for Cl₂ O₇ ?
- A.
  
  Chlorine oxide
- B.
  
  Chlorine heptoxide
- C.
  
  Dichlorine oxide
- D.
  
  Dichlorine heptoxide
- E.
  
  Chlorine Oxygen