2nd Grading Review (III)

What would you name this molecule?

• SNa3
• H3O
• NaCl
• H2O

What molecule is this?

• CO
• CO2
• C2O
• C2O2

In a covalent bond, one or more electrons are? 

• shared 
• lost 
• gained 
• transferred 

Which of the following is the best representation of a molecule of fluorine (F₂)?

• A

• B

• C

• D

Which would be the only situation where valence electrons would be shared evenly?

• metals and nonmetals

• different nonmetals

• nonmetals of the same element

• metalloids of the same element

What is the name of this Compound

• P₂O₅

• Phosphorous PentaOxide

• Diphosphorous pentoxide

• Phosphourous Oxide

What is the formula for this Compound

Generally, atoms form bonds so that _______________.

• Each atom loses its electrons

• Each atom has a stable electron configuration

• Each atom has an unstable electron configuration

• Each atom gains electrons

Identify the following compound as ionic or covalent: CF₄

• ionic

• covalent

In the polar covalent molecule of hydrogen chloride (HCl) - the chlorine atom has

• a lesser pull on electrons and therefore become partially positive charge.

• has a greater pull and therefore become partially negative charge.

• has no effect on charge because it is neutral.

• a lesser effect on valence electrons.