Chemistry Quiz - Level 2
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You survived the Level 1 quiz, but can you master the Level 2 quiz. . . . . Of DEATH!? Enter at your own peril. . . . . . . . But you have to do it, so. . . . You need 68% to pass. Remember to take a screen shot of your results!
- 1.Atoms are neutral because they have _______________ ?
- A.
The same number of protons and neutrons
- B.
The same number of electrons and neutrons
- C.
The same number of protons and electrons
- D.
Different numbers of protons and neutrons
- 2.Atoms or groups of atoms with a charge are called ions.
- A.
True
- B.
False
- 3.Ions are created by gaining or losing _________________?
- A.
Electrons
- B.
Protons
- C.
Neutrons
- D.
Atoms
- 4.By using the Periodic Table, we can predict the charge of an ion that a particular atom will create. What information on the periodic table helps with this prediction?
- A.
Atomic Number
- B.
Mass Number
- C.
Period Number
- D.
Group Number
- 5.Flourine, Chlorine and Bromine will all form ions with what charge?
- A.
+1
- B.
+2
- C.
-1
- D.
-2
- 6.The formula for Magnesium Chloride is *Number in the answers below should be sub-script (ie small and below the letters)
- A.
MgCl
- B.
Mg2Cl3
- C.
MgCl2
- D.
Mg2Cl
- 7.Avagadro's Number is based on which element?
- A.
Carbon
- B.
Nitrogen
- C.
Oxygen
- D.
Hydrogen
- 8.Avogadros Number is
- A.
6.1023
- B.
6.02 x 10^23
- C.
6000000001023
- D.
6.10 x 23
- 9.Calculate the number of moles in 36.8 grams of Oxygen
- 10.Calculate the mass of 3.6 moles of Iron (units NOT required in answer)
- 11.What is the Molecular Mass of NaCl? (units NOT required in answer)
- 12.Non-Metal atoms join together with which type of bond?
- A.
Covalent
- B.
Metallic
- C.
Ionic
- D.
Strong
- 13.In metallic bonds, the electrons are often free to move through the material. This relates to which property of metals?
- A.
Strength
- B.
Luster
- C.
Electrical Conductivity
- D.
Malleability
- 14.Bonding occurs as it helps make the atoms more stable?
- A.
True
- B.
False
- 15.Ionic bonds occur between ________________?
- A.
Metal atoms
- B.
Non-Metal atoms
- C.
Metal and Non-Metal atoms
- D.
Atoms of the same element
- 16.Covalent Molecular substance have weak inter-molecular bonds. This results in which property?
- A.
Low melting and boiling points
- B.
High melting and boiling points
- C.
Brittle materials
- D.
Strong materials
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