Which change is expansion of copper

Which direction does the energy flow in this energy pyramid ?

Nh3 +02-no + h20 is unbalanced what is the balanced equation

Your two friends just told you what to order for them at the drive through fast food restaurant. you give the order but when the food comes about 10 minutes later, you don't remember what each of your friends ordered your memory of the order was in __ memory. a. semantic b. flashbulb c. long-term d. short-term i think i know but i'm not really sure