What is the molar absorptivity (in m–1cm–1) of the unknown dye at 542 nm?.

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .

The correct answer should be "electrons orbit the nucleus in circular motions exactly as shown on the classic bohr model."

Heat is involved in chemical change in two ways; chemical changes either result in heat being added to or removed from an object, and chemical changes require a certain amount of heat before they can take place.

The answer is nitrogen-containing bases