Give an example of at least one element made up of molecules and one compound made up of molecules.

The isotonic saline solution described in part a is connected to an unknown solution via a semipermeable membrane, the unknown solution level drops. based on this information, what can be said about these two solutions?

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball