What plant structure keeps these droplets from entering the plant? A. cuticle
B. stem
C. root
D. thorn

Please help!

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

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.