EL5

Question 1

What is a dative covalent bond?

Answer 1

Both bonding electrons come from the same atom.

Question 2

In 3D structures, what do solid lines represent?

Answer 2

Represents bonds that lie in the plane of the paper.

Question 3

In 3D structures, what do solid, wedged lines represent?

Answer 3

Represents bonds that come towards you.

Question 4

In 3D structures, what do dashed lines represent?

Answer 4

Represents bonds that go away from you.

Question 5

2 electrons pairs

Answer 5

linear

180°

Question 6

3 electrons pairs

Answer 6

trigonal planar

120°

Question 7

4 electrons pairs with no double pairs

Answer 7

tetrahedral

109.5° - subtract 2.5° for lone pair of electrons

Question 8

4 electron pairs with double bonds

Answer 8

depending on bonded regions
2 - linear (180°)
3 - trigonal planar (120°)
5 - trigonal bipyramidal (90° and 120°)
6 - octahedral (90°)

Question 9

5 electron pairs

Answer 9

trigonal bipyramidal

90° and 120°

Question 10

6 electron pairs

Answer 10

octahedral

90°