1.1 Polarity

Question 1

What are the two factors considered in molecule polarity?

Answer 1

I) the type of bonds
II) the shape

Question 2

Identify the three main type of bonds discussed in class.

Answer 2

I) ionic
II) non polar covalent
III) polar covalent

Question 3

What is the difference between an ionic and covalent bond?

Answer 3

Covalent bonds share electrons, while ionic bonds involve the transfer of at least one electron.

Question 4

Differentiate a non polar and polar covalent bond.

Answer 4

A polar bond involves the unequal sharing of an electron, while a non polar bond means the electron(s) are shared evenly.

Question 5

What are the conditions needed for hydrogen bonding?

Answer 5

A hydrogen bond occurs when a slightly negative hydrogen is attracted to a slightly positive atom.

Question 6

Are hydrogen bonds stronger or weaker than covalent bonds? Explain why.

Answer 6

They are weaker, because there is no physical attachment, only an attraction, like magnets.

Question 7

What is the difference in electronegativity that produces a non polar covalent bond?

Answer 7

0-0.4

Question 8

What type of bond is formed with an electronegativity difference of 0.5-1.7?

Answer 8

Polar covalent

Question 9

What difference in electronegativity creates an ionic bond?

Answer 9

Anything above 1.7

Question 10

What type of bond do Carbon and hydrogen ALWAYS produce?

Answer 10

Non polar covalent

Question 11

What type of bond do hydrogen and oxygen ALWAYS produce?

Answer 11

Polar covalent

Question 12

What type of bond do carbon and oxygen ALWAYS produce?

Answer 12

Polar covalent

Question 13

What is the most reactive bond that can occur, and why?

Answer 13

Fluorine and francium, as this bond would exist between the most and least electronegative elements.

Question 14

What two components make up an ionic bond?

Answer 14

A metal and a non metal