You have two containers. The first container contains 22.99 grams of solid sodium (Na). The second container contains 15.999 grams of Oxygen (O).
Which container has more moles of the indicated substance? *

Which of the following is an example of how telecommunication devices people do their jobs? a.) a security guard checks the time using a digital watch. b.) a banker does some quick math using a solar calculator. c.) a nurse uses a digital thermometer to take a patient’s temperature. d.) a construction worker reports in to his office using a cell phone.