Cuál es la molaridad de 0,75 moles de soluto disueltos en 2.2 L de solvente?

How did planetesmals form planets? a. they broke apart into smaller chunks. b. they collided and stuck together. c. they cooled and pulled ice together. d. they began to rotate.

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

Particles vibrate in a rigid structure and do not move relative to their neighbors.