Which of the following statements about the particles in a solution is true? a when an ionic solid mixes with water, its ions repel water molecules. b when a molecular solid mixes with water, the covalent bonds are broken. c when an ionic solid mixes with water, water molecules surround each ion. d when a molecular solid mixes with water, water molecules surround each ion.

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

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.

State one important difference between a physical change and a chemical change?