How many moles of cobalt atoms are in 3.145 x 1025 atoms of cobalt?

Why do scientists look for patterns in the world? a. patterns can explain observations. b. patterns never change, no matter what. c. patterns are easy for scientists to detect. d. patterns are all the same, through all time.

1. list three scientific reasons cockroaches may fly.

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged