Molecules, Building Blocks Of Life
10 Questions
| Attempts: 220
Questions and Answers
- 1.When two or more atoms bond together they form a
- A.
Mixture
- B.
Molecule
- C.
Compound
- D.
Atom
- 2.All molecules are made up of
- A.
Hydrogen
- B.
Atoms
- C.
Compounds
- D.
Other Molecules
- 3.Molecules can be easily separated.
- A.
True
- B.
False
- 4.Why do atoms bind together to form molecules?
- A.
To create a nucleus with a neutral charge
- B.
To fill their valence electron shell and become a more stable substance
- C.
To share an equal number of protons
- 5.Which of the following is an example of a substance that is composed of molecules?
- A.
Sodium
- B.
Carbon Dioxide (CO2)
- C.
Gold
- 6.Molecules join together by
- A.
Sharing electrons
- B.
Distributing the atoms' mass evenly
- C.
Sharing protons
- D.
Sharing neutrons
- E.
Both C and D
- 7.A molecule has different properties from the elements from which is was made.
- A.
True
- B.
False
- 8.Molecules are held together by what kind(s) of bonding?
- A.
Ionic Bonding
- B.
Covalent Bonding
- C.
Metallic Bonding
- D.
Both A and B
- E.
Both B and C
- 9.What is the name of this molecule?
- A.
Hydroxide (OH)
- B.
Water (H2O)
- C.
Oxygen (O2)
- D.
Hydrogen (H2)
- E.
Both C and D
- 10.Which of these is a true statement?
- A.
Molecules are always moving
- B.
All molecules are the same mass
- C.
All molecules are the same size
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