25
Explanation:
The coefficient 5 applis to each element in the molecule, so there are 5 times 1 H atom, 5 times 1 N atom, and ,since O has a 3 subscript, there are 5 times 3 O atoms. Therefore there are 25 atoms.
boiling, salt water will separate the salt from the water through the physical change of water from a liquid to a gas, leaving you with just salt left over.
Ammonia, ammonium hydroxide, calcium hydroxide and oxide. I think...
It would most likely be a molecular compound. A molecular compound contains two or more nonmetals.
