Beet juice is added to a unknown solution and changes color from red to purple. curry powder, added to the same solution, turns a deep red color. what can you tell about the hydrogen/hydroxide ion concentration of the unknown liquid?

Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.

Organelles are 1. responsible for producing power for the cell 2. tiny structures in the cell that carry out the cell's activities 3. responsible for digestion in the cell 4. found outside of the membrane