14. Which type of bond is formed when an ammonia molecule accepts a proton?
1) electrovalent
2) ionic
3) coordinate covalent
4) metallic

After cloud droplets form, what must happen to them for precipitation to occur?

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.

What do we call the rows on the periodic table? a. periodb. familyc. groupd. metals