What must happen for heat to be transferred by thermal conduction? O A. Two molecules must collide with each other.
B. The liquid or gas must circulate to move the heat.
C. The sun must send out electromagnetic waves.
a
D. The kinetic energy must be equal in smo objects.

Type the letter that represents the correct location for each particle type below.

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

Chlorine and water react to form hydrogen chloride and oxygen, like this: 2cl2 (g) + 2h2o (g) → 4hcl (g) + o2 (g) also, a chemist finds that at a certain temperature the equilibrium mixture of chlorine, water, hydrogen chloride, and oxygen has the following composition: compound concentration at equilibrium cl2 0.55m h2o 0.57m hcl 0.53m o2 0.34m calculate the value of the equilibrium constant kc for this reaction. round your answer to 2 significant digits.