At times, even Leo has trouble believing she is genuine. At times, she seems almost otherworldly, and it's not like you hear about star people in everyday conversation. Nevertheless, Stargirl falls under the realism genre because it's a book about very believable teenage life.Characters speak and dress in an everyday way, and fall in love just like the rest of us. Of course Stargirl doesn't do anything in an everyday way.t times, even Leo has trouble believing she is genuine. At times, she seems almost otherworldly, and it's not like you hear about star people in everyday conversation. Nevertheless, Stargirl falls under the realism genre because it's a book about very believable teenage life.
Commercial samples labelled ammonium carbonate no longer contain this compound, but a mixture that has similar ammonia content. Since it readily degrades to gaseous ammonia and carbon dioxide upon heating, it is used as a leavening agent and also as smelling salt.
Adding sulfur will cause the ammonium sulfide solution to turn yellow-orange as ammonium polysulfide [(NH 4) 2 S x ] is formed. The polysulfide is also used in mineral analyses, though not as often as the regular sulfide.Sometimes ammonium sulfide solution will turn yellow-orange even when no sulfur has been added.he ammonium sulfide solution, prepared as outlined above, can be used to precipitate certain metal cations as sulfides (some, such as iron, precipitate as hydroxides if the pH is adjusted toward alkalinity). For detailed information on sulfide precipitations, see Orsino Smith's procedures P-8 and P-14 (1946).