Which of the following represents a molecular compound? A: h20

B:NaCl

C: K

D: Mg2O

Acaterpillar tries to climb straight up a wall a meter high, but for every 2 cm up it climbs, it slides down 1 cm. eventually, it reaches the top. when it reaches the top, it does not pull itself over so it will slide down 1 cm. what is the total displacement traveled?

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?

Ais a multilevel way of grouping items based on common properties among them. a. memory b. conceptual hierarchy c. schema d. semantic network