A researcher is trying to identify whether household substances are basic. Which approach would BEST help investigate whether substances are basic?
A Mix each substance with a weak base and record the results.
B. Test each substance with blue litmus paper.
C. Observe each substance and record its color.
D. Test each substance with red litmus paper.

Which organic molecule is found in the chromatin of cells?

Which of the following statements concerning the influence of culture on ethnic identity formation is accurate? a. one will reject ethnic identity if cultural stereotypes are encountered. b. if one’s ethnic city is different from the dominant cultural group, then one’s ethnic identity you will become weekend. c. if an the ethnic group is excepted by dominant culture, then ethnic identity formation can be a difficult process. d. similarity to the dominant culture can determine how easy it is for one to except ethnic differences.

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.