A student has a green dye mixture on which she performs a TLC experiment with a silica gel plate and acetone as the solvent. she obtains a yellow spot with a Rf of 0.75 and a teal spot with an Rf of 0.45 explain her significance of her data.

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

Imagine that you’re getting ready to move to a new city. when people move, they are influenced by push factors and pull factors, and you have many reasons for your move. which of the following factors is an example of a pull factor? a. wanting to move because you’ve found a great new school somewhere new b. needing to move because there are not enough resources in your old hometown c. being forced to move because your old home is gone d. having to move because there are no jobs in your current hometown

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.