Covalent bonds/compounds

Covalent Bonds/ Compounds

Multiple Choice

Which of the following compounds is considered a covalent compound?

• NH₃

• NaCl

• MgO

• K₂S

Multiple Choice

Ice, H₂O(s), is classified as

• an ionic compound

• a molecular compound

• a homogeneous mixture

• a heterogeneous mixture

Covalnet Bonding

Sharing of electrons

Single bonds = 2 electrons = 1 pair

Double bonds = 4 electrons = 2 pairs

Triple bond = 6 electrons = 3 pairs

Poll

In Carbon Dioxide, the bond between the carbon and oxygen is,

• single bond

• double bond

• triple bond

Multiple Choice

Based on Table S, which group on the Periodic Table has the element with the highest electronegativity?

• Group 1

• Group 2

• Group 17

• Group 18

Multiple Choice

Based on Table S, an atom of which element has the strongest attraction for electrons in a chemical bond?

• chlorine

• nitrogen

• oxygen

• selenium

Fill in the Blanks

What is the difference in electronegativity in a bond between Hydrogen and Chlorine?

Fill in the Blanks

What is the difference in EN in a bond between Carbon and Hydrogen

Fill in the Blanks

Which is more polar? A C-H bond or H-Cl bond?

Multiple Choice

The least polar bond is found in a molecule of

• HI

• HF

• HCl

• HBr

Multiple Choice

Which property is used to determine the degree of polarity between two bonded atoms?

• density

• electronegativity

• pressure

• temperature

Multiple Choice

Which two terms represent major categories of compounds?

• ionic and nuclear

• ionic and molecular

• empirical and nuclear

• empirical and molecular