The ion equation of the reaction between iron and concentrated sulfuric acid under heating conditions is: Iron +6H +3NO = Fe3 + 3NO ^+3H ^O. Read more exciting novels for free
The chemical equation for the reaction between iron and concentrated sulfuric acid is: Fe6HNO2 (concentrated)= heating = FeNO2 + 3NO2 + 3H2O. The reaction phenomenon was that reddish-brown gas (NO <2>) was produced and the iron gradually dissolved. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
1. 铁与浓硝酸反应: - 常温下铁在浓硝酸中会钝化,不反应。 - 加热时,若铁少量:\(Fe + 6HNO_{3}(浓)=\triangle=Fe(NO_{3})_{3}+3NO_{2}\uparrow+3H_{2}O\); - 若铁过量:\(Fe + 4HNO_{3}(浓)=\triangle=Fe(NO_{3})_{2}+2NO_{2}\uparrow+2H_{2}O\)。 2. 铁与稀硝酸反应: - 若铁少量:\(Fe + 4HNO_{3}(稀)=Fe(NO_{3})_{3}+NO\uparrow+2H_{2}O\); - 若铁过量:\(3Fe + 8HNO_{3}(稀)=3Fe(NO_{3})_{2}+2NO\uparrow+4H_{2}O\)。 <a href="/?from=ask_words" style="color:red" target="_blank">点击前往免费阅读更多精彩小说</a>
Under normal conditions, ester and concentrated sulfuric acid would not react, so there was no reaction equation. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Iron reacted with concentrated sulfuric acid. If there was an excess of concentrated sulfuric acid, the reaction equation was: Fe6 HNO2 (concentrated)= heating = Fe3 (NO2)+3NO2 ^+3H2 O. If there is an excess of iron, the reaction equation is: Fe4 HNO2 (concentrated)= heating = Fe2 (NO2) 2 + 2NO2 2 + 2H2 O. [Phenomenon: The reaction produces reddish-brown gas (NO <2>), and the iron is gradually dissolved.] At the same time, the color of the solution may vary according to the relative amount of iron and sulfuric acid and the degree of reaction. If the solution is formed, it may be brownish-yellow, and if the solution is formed, it may be light green. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
When excess concentrated sulfuric acid and iron are heated, the reaction equation is: Fe4HNO3 (concentrated)=== Fe2NO2 + 2H2O. The reaction phenomenon was that reddish-brown gas (NO2) was produced, and the iron gradually dissolved. This was an oxido-reduction reaction. In this reaction, the valency of iron increased from 0 to +2, showing reduction, while the valency of nitrogen in the sulfuric acid decreased from +5 to +4, showing oxidisation. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction was more complicated when the mixture was heated. In addition to the formation of oxided products such as phenodinone, due to the dehydration and water absorption of hot concentrated sulfuric acid, a water molecules would be removed from the molecules to form substances such as diphenylethers, and some substances such as ester would also be formed. It was difficult to simply write a single reaction equation. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
There was no reaction between the two, so there was no reaction equation. Because the metathesis reaction must produce water, gas, or precipitations, the reaction of sulfuric acid and sulfuric acid did not meet the conditions of the metathesis reaction, so it could not react. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Elemental sulfur can undergo an oxido-reduction reaction with concentrated sulfuric acid under heating conditions. Sulfur is oxided to sulfuric acid with a +6 valency, and concentrated sulfuric acid is reduced to nitrogen dioxide with a +4 valency. The reaction equation is: S +6HNO= heating = H ^SO+ 6NO ^+2H ^O. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Since the carbon-oxygen bond of Butanol was a polar bond, the electron negativity of the oxygen atom was greater than that of the carbon atom, so the carbon-oxygen bond was easy to break and an elimination reaction occurred. For example, the elimination reaction of 1-Butanol under the effect of concentrated sulfuric acid, the removal of the hydrogen atom from the alpha carbon atom, and the removal of the hydrogen atom from the beta carbon atom (also known as beta elimination reaction), the reaction produces 1-Buten and water, the reaction formula is CH3CH20H = CH3CH2CH = CH2 + H2O; 2-Butanol and concentrated sulfuric acid mixed together at 170 ° C will also undergo elimination reaction, forming CH2 = CH-CH2-CH3 + H2O or CH3CH = CH-CH3 + H2O; If the molecular dehydration reaction (reaction temperature is 140 degrees), the reaction formula is 2CH3-CH (CH)-CH2-CH3-concentrated sulfuric acid, 140 degrees-CH3-CH-OCHCH3/<CH2CH3CH2CH3>. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The chemical equation of the reaction between the two is: Mn +2ClCl2 = Mn + Mn + Mn. The concentration of the acid generally did not affect the type of product. The reaction formed a mixture of hydrogen and mercury. The excess of the acid would form a complex ion with the mercury ion. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>