Test- Chemical Bonding

Question 1

1. Molecular compounds do not conduct electricity because they

Answer 1

do not break up into ions. Pg. 22

Question 2

12. Which of the following is an example of a molecule?

Answer 2

H2O pg. 22

Question 3

16. What is a double bond?

Answer 3

Two pairs of electrons shared between two atoms. Pg. 22

Question 4

37. In the chemical formula for an ionic compound, which item is written first?

Answer 4

Positive ion pg. 23

Question 5

38. A group of covalently bonded atoms that acts together as one charged atom is a.

Answer 5

Crystal pg. 22

Question 6

39. Magnesium bromide is an ionic compound with the chemical formula MgBr2. What does the “2” tell you?

Answer 6

There are two bromide ions for every magnesium ion. Pg. 23

Question 7

40. Which of the following is the correct name for a compound between Phosphorus and Chlorine?

Answer 7

Phosphorous trichloride pg. 24

Question 8

47. Chemical bonds form when valence electrons are ———- between atoms.

Answer 8

Shared/ Transfered pg. 23

Question 9

48. When ions having a positive charge form bonds with ions having a negative charge, the charge on the resulting compound is

Answer 9

Zero pg. 24

Question 10

53. Why do noble gases rarely form compounds?

Answer 10

bc they are already stable- their outermost energy levels are already complete. Pg. 2

Question 11

71. What type of bond is formed between two Oxygen atoms? Explain specifically what will happen to form the bond.

Answer 11

covalent 2 oxygen atoms form a double bond by sharing 4e- between them. Pg. 23