carbon + nirtic acid = water + nitrogen dioxide + carbon dioxide
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∙ 14y agoin study island, the answer is "The reaction between the copper and the nitric acid produces heat. It is exothermic."
In hot concentrated acid, nitric is an oxidizing acid: 3Zn + 8HNO3 → 3Zn(NO3)2 + 2NO + 4H2O But in cold, dilute solutions: Zn(s) + 2HNO3 (aq) → Zn(NO3)2 (aq) + H2 (g)
Pieces of copper are added to hot concentrated solutions of hydrochloric, phosphoric, sulfuric and nitric acids. A reaction clearly takes place between copper and nitric acid. The presence of copper ions can be observed by adding each solution to a dilute solution of ammonia. If copper ions were present, we would see the blue color of the copper-ammonia complex. Sulfuric acid has oxidized the copper metal, as indicated by the blue color. Nitric acid is a stronger oxidizing agent (and produces a higher concentration of copper(II) ions), as indicated by the darker blue color.
Mercury is not attacked by dilute hydrochloric or sulfuric acid. It reacts with hot nitric acid to form mercuric nitrate, Hg(No 3 )
2hno3 + s = 2no + h2so4
in study island, the answer is "The reaction between the copper and the nitric acid produces heat. It is exothermic."
in study island, the answer is "The reaction between the copper and the nitric acid produces heat. It is exothermic."
Hot Aqua Regia
In hot concentrated acid, nitric is an oxidizing acid: 3Zn + 8HNO3 → 3Zn(NO3)2 + 2NO + 4H2O But in cold, dilute solutions: Zn(s) + 2HNO3 (aq) → Zn(NO3)2 (aq) + H2 (g)
Gallium oxide is dissolved in hot nitric acid.
Pieces of copper are added to hot concentrated solutions of hydrochloric, phosphoric, sulfuric and nitric acids. A reaction clearly takes place between copper and nitric acid. The presence of copper ions can be observed by adding each solution to a dilute solution of ammonia. If copper ions were present, we would see the blue color of the copper-ammonia complex. Sulfuric acid has oxidized the copper metal, as indicated by the blue color. Nitric acid is a stronger oxidizing agent (and produces a higher concentration of copper(II) ions), as indicated by the darker blue color.
Mercury is not attacked by dilute hydrochloric or sulfuric acid. It reacts with hot nitric acid to form mercuric nitrate, Hg(No 3 )
2hno3 + s = 2no + h2so4
Boron is resistant to boiling HF or HCl. However, in finely divided state, it reacts slowly with hot conc. nitric acid, sulphuric acid & mixture of sulphuric acid & chromic acid.
Dissolve 10 grams of mercury in 20 cc. of hot concentrated nitric acid, and dilute the resulting solution with 30 cc. of water. Mohan C D
After a reaction between steam and hot carbon.
Hot potassium permanganate is used in the oxidative cleavage of alkenes. In this case, the product would be 6-oxoheptanoic acid. The aldehyde produced at carbon 2 (the HR-C=C-R'R'') is rapidly converted into a carboxylic acid instead of staying as an aldehyde, while carbon 1 (the HR-C=C-R'R'') is converted into a ketone.