How many molecules are in 32 grams of NH3?

What is avogadro’s number, and why is it useful

Scientific evidence tells us that the cause of earths four season is the tilt of earth as it revolves around the sun. the student is instructed to illustrate this information in a science notebook. how will the student illiterate winter in the northern hemisphere?

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0