Balance the following redox equation using the oxidation-number-change method. show your work, describing each step.
hno3 + h2s —-> s + no + h2o

This drawing shows a human body system. what is the primary function of this body system?

Acontrol during an experiment. might change remains constant does not exist does change

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.