In the chemical formula for ammonia, NH3 , what does the subscript 3 represent? the number of ammonia molecules that will bond together

the number of nitrogen atoms in each molecule of ammonia

the number of hydrogen atoms in each molecule of ammonia

the number of nitrogen and hydrogen atoms in each molecule of ammonia

Which statement describes james chadwick’s discovery.

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy

Chris is about to do an experiment to measure the density of water at several temperatures. his teacher has him prepare and sign a safety contract before beginning the experiment. which term is mostlikely part of the safety contract