Match each chemical reaction or treatment involving an acid or base on the left with its corresponding characteristic observation or underlying chemical property on the right.
- Warming ammonium chloride () solid with aqueous sodium hydroxide ()Liberation of a pungent gas that turns moist red litmus paper blue, demonstrating displacement of a volatile base
- Heating solid sodium chloride () with concentrated tetraoxosulfate(VI) acid ()Evolution of steamy fumes that form dense white fumes with ammonia, demonstrating acid displacement by a less volatile acid
- Adding excess aqueous sodium hydroxide () to a precipitate of zinc hydroxide ()Dissolution of the precipitate to yield a colorless solution, demonstrating amphoteric hydroxide behavior
- Reacting copper turnings () with concentrated trioxonitrate(V) acid ()Evolution of reddish-brown nitrogen(IV) oxide gas (), demonstrating strong oxidizing acid action
Cevap
Warming with liberates gas which turns moist red litmus blue; heating with concentrated liberates gas which forms white fumes with ammonia vapor; adding excess to dissolves the precipitate due to its amphoteric nature; reacting copper with concentrated yields brown gas due to the acid's strong oxidizing power.
Each pair correctly matches the specific acid/base transformation to its corresponding property: liberation of alkaline gas from ammonium salt displacement, liberation of volatile gas by non-volatile , dissolution of amphoteric in excess base, and evolution of gas due to the oxidizing nature of concentrated .
Adım Adım Çözüm
Anahtar Kavram
Distinct physical and chemical properties of acids and bases, including acid/base displacement volatility, amphoterism, and oxidizing acid behavior.