Lithium has two isotopes, lithium-6 weighing 6.015 amu (7.5% abundance), and lithium-7 weighing 7.016 amu (92.5% abundance). What is the atomic mass of lithium?
with calculations

The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?

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.

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units: