What bond vibrations and stretching frequencies should you observe in the IR spectrum of caffeine?

If 1.8 l of water is added to 2.5l of a 7.0 molarity koh solution, what is the molarity of the new solution

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?