Asolution has a concentration of dye= 0.0003 m at a given time during the reaction. the sample described has a ln(a0) = -4.1655. assuming the path length is 1 cm what is the molar absorptivity constant for the dye? report answer to two decimal places. no units required.

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.

Awoman's basketball has a circumference between 28.5 and 29.0 inches and a maximum weight of 20 ounces (two significant figures). what are these specifications in units of centimeters and grams?

What occurs when a cell engulfs large food particals