In models of molecules, gray spheres are carbon atoms, white spheres are hydrogen atoms, red spheres are oxygen atoms, and blue spheres are nitrogen atoms. Which model represents a molecule of ammonia, NH3?
(Please give the correct answer, or an accurate answer. If you do get it correct then I'll reward you with brainliest.)

What overall charge must all compounds have

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean