Question 1
The average distance between nitrogen and oxygen atoms is 115 pm in a compound called nitric oxide. What is this distance in millimeters?
◦ 1.15 × 10
-8mm
◦ 1.15 × 10
-7mm
◦ 1.15 × 10
13mm
◦ 1.15 × 10
17 mm
Question 2
The content of a container filled with sand and water would best be described as:
◦ elements
◦ a homogeneous mixture
◦ a heterogeneous mixture
◦ a compound
◦ a solution