Consider the following step of a reaction mechanism.
A+B → D + E (slow)

Which statement identifies a reaction intermediate?

1.A, if it is used in a later step
2.B, if it is produced in an earlier step
3. D. if it is used in an earlier step
4. E, if it is produced in a later step

Earth's axis of rotation is tilted at an angle of 23.5 degrees. what is one change you would see on earth if its axis was not tilted?

The three types is stress that act on earths rocks are compression, tension, and

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices