prep1 lesson2 part3

1- The melting process reverses the................................................ process.

• a. freezing

• b. vaporization

• c. condensation

• d. boiling

2- The molecule is composed of very small particles called......................................

• a. atoms.

• b. elements.

• c. compounds.

• d. cells.

3-The molecule that consists of similar atoms is called..........................

• a. an atom.

• b. an element molecule.

• c. a compound molecule.

• d. a mixture.

4-Molecules of nobel gases are composed of ......................................atom(s).

• a. one

• b. two

• c. three

• d. four

5- From inert gases is..........................

• a. nitrogen.

• b. helium.

• c. oxygen.

• d. hydrogen.

6-...........................................is the monoatomic liquid molecule.

• a- Bromine

• b. Iodine

• c. Mercury

• d. Chlorine

7- The intermolecular force among the molecules of mercury is...............................

• a. large.

• b. weak.

• c. vanished.

• d. very weak.

8- All of the following are diatomic gaseous molecules except...................................

• a. hydrogen.

• b. nitrogen.

• c. argon.

• d. chlorine.

9-The molecule that consists of different atoms is called......................................

• a. an atom.

• b. an element molecule.

• c. a compound molecule.

• .

  d. an inert gas.

10- Water molecule is composed of..........................

• a. one hydrogen atom and two oxygen atoms.

• b. one hydrogen atom and two nitrogen atoms.

• c. one oxygen atom and two hydrogen atoms.

• d. two hydrogen atoms and two oxygen atoms.