webnovel
Reaction equation and phenomenon of sulfur dioxide and bichromic acid

Reaction equation and phenomenon of sulfur dioxide and bichromic acid

2026-07-16 11:04
1 answer

The reaction ion equation was: Cr2O72- +3SO2 + 2H + = 3SO42- +2Cr3 + + H2O. There was no reference to this reaction, so it was impossible to give an accurate answer. Read more exciting novels for free

Reaction equation and phenomenon analysis of sulfur dioxide and acidic bichromic acid

以硫酸为例,二氧化硫与酸性重铬酸钾反应的化学方程式为:\(K_{2}Cr_{2}O_{7}+3SO_{2}+H_{2}SO_{4} = K_{2}SO_{4}+Cr_{2}(SO_{4})_{3}+H_{2}O\),其离子方程式为:\(Cr_{2}O_{7}^{2 - }+3SO_{2}+2H^{+}=3SO_{4}^{2 - }+2Cr^{3 + }+H_{2}O\)。 在这个反应中,重铬酸钾(\(K_{2}Cr_{2}O_{7}\))中的铬元素从 +6价被还原为 +3价的\(Cr^{3 + }\),而二氧化硫(\(SO_{2}\))被氧化为硫酸根离子(\(SO_{4}^{2 - }\))。反应现象方面,溶液的颜色会发生变化,由于重铬酸根离子(\(Cr_{2}O_{7}^{2 - }\))通常具有特定颜色(一般为橙红色),反应后生成的\(Cr^{3 + }\)离子具有不同颜色(一般为绿色),所以反应过程中可以观察到溶液颜色由橙红色转变为绿色。 <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>

1 answer
2026-07-12 22:57

Reaction equation and phenomenon summary of sulfur dioxide and sulfuric acid

Sulfur dioxide ($SO2 $) and sulfuric acid ($H2SO4 $) had different reactions. If it was concentrated sulfuric acid, the reaction equation was: 2H2SO4 (concentrated)+ SO2 = 2H2O +3SO3. The phenomenon was that the pungent gas ($SO2 $) was absorbed by concentrated sulfuric acid, and a small amount of smoke might be seen during the reaction ($SO3 $might form acid mist in the air). If it was diluted sulfuric acid, it would basically not react. He could simply draw a picture with the reaction equation written on it and a small picture beside it to indicate the phenomenon of smoke production. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-08-08 01:18

What is the reaction equation of hydrogen dioxide and bichromic acid?

In the presence of diluted sulfuric acid, the reaction equation is: K2Cr2O7 + 4H2O2 + H2SO4 (diluted)= K2SO4 + 2CrO5 + 5H2O; when the solution containing bichromate ions is heated with hydrogen peroxide2, the reaction equation is: Cr2O72- +3H2O2 + 8H+= 2Cr3 + +3O2 + 7H2O. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-08-18 10:07

Ionic equation and phenomenon of the reaction between sulfur dioxide and Bromine and Iodine

溴与二氧化硫反应的离子方程式为:\(Br_{2}+SO_{2}+2H_{2}O = 2Br^{-}+SO_{4}^{2 -}+4H^{+}\);碘与二氧化硫反应的离子方程式为:\(I_{2}+SO_{2}+2H_{2}O = 2I^{-}+SO_{4}^{2 -}+4H^{+}\)。未查询到关于溴、碘与二氧化硫反应现象的相关内容,对不起,无法准确回答反应现象部分内容。 <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>

1 answer
2026-08-14 19:10

Sulfur and oxygen reaction equation phenomenon

The chemical equation for the reaction between sulfur and oxygen is: S + O2 SO_2\)。 The reaction phenomenon was: burning in the air to produce a light blue flame, releasing heat and producing a gas with a pungent smell; burning in oxygen to produce a bright blue-purple flame, releasing heat and producing a gas with a pungent smell. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-08-21 13:47

The equation and phenomenon of the reaction between sulfur and matter

1. **硫与铁反应** - 方程式:\(Fe + S \stackrel{\triangle}{=\!=\!=} FeS\)(硫化亚铁,黑褐色) - 现象:反应剧烈,生成黑褐色固体。 2. **硫与铜反应** - 方程式:\(2Cu+S \stackrel{\triangle}{=\!=\!=}Cu_{2}S\)(硫化亚铜,黑色) - 现象:有黑色固体生成。 3. **硫与汞反应** - 方程式:\(Hg + S=\!=\!= HgS\)(硫化汞,黑色) - 现象:常温下迅速反应,生成黑色固体。 4. **硫与氢气反应** - 方程式:\(H_{2}+S \stackrel{点燃}{=\!=\!=}H_{2}S\) - 现象:有臭鸡蛋气味的气体生成。 5. **硫与氧气反应** - 方程式:\(S + O_{2}\stackrel{点燃}{=\!=\!=}SO_{2}\) - 现象:有刺激性气味的气体生成。 6. **硫与热的碱溶液反应** - 方程式:\(3S + 6NaOH \stackrel{\triangle}{=\!=\!=}2Na_{2}S+Na_{2}SO_{3}+3H_{2}O\)(离子方程式为\(3S + 6OH^{-}\stackrel{\triangle}{=\!=\!=}2S^{2 -}+SO_{3}^{2 -}+3H_{2}O\)) - 现象:无明显特殊现象(溶液中的反应,反应后溶液成分发生改变)。 <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>

1 answer
2026-07-12 04:00

Reaction equation and phenomenon of chloride-carbon dioxide

If the two did not react, the reaction equation could not be written. carbon dioxide (CO2) was a non-metallic oxide-like substance, while Cl2 was a non-metallic elemental substance. A substitution reaction occurred between the compound and the elemental substance. However, this kind of reaction required the compound to be a dissolved metal compound or acid, while CO2 was a non-metal compound, which did not meet the conditions, so the two did not react. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-07-13 21:47

How to write the reaction equation of sulfur dioxide and naoh?

There was no reaction between Na <2> SO2 <3> and Na <2> Ox <3>. Because one was a base and the other was a salt, if they reacted, the two metal elements would exchange with each other without changing their valency, but they would not form a solid, gas, or other new substance after the exchange, so the two would not react. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-08-07 14:11

Ion equation and phenomenon summary of sulfur and metal reaction

For the reaction between sulfur and metal, the following are the common reactions and situations: - Sulfur and iron reaction: The chemical equation is: FeS + S = (heating)FeS. This reaction does not involve free moving ions, so it cannot be rewritten as an ion equation. The phenomenon was the formation of black solid iron Sulphide. - Sulfur and copper reaction: The chemical equation is 2Cu + S = (heating) Cu2 S. Similarly, the ion equation cannot be written. The phenomenon was the formation of black cuprous sulfur solid. - Sulfur and Na reaction: The chemical equation is 2Na + S =(grinding)Na <2> S. There is no need to rewrite the ion equation. The phenomenon was that during the grinding process, a violent reaction formed a white solid of sulfur dioxide. - Sulfur and aluminum reaction: The chemical equation is 3S +2AI = Al2S, which cannot be rewritten as an ion equation. The reaction phenomenon was the formation of aluminum sulfur solid. - Sulfur and mercury reaction: The chemical equation is as follows: Mercury + S = HgS, which cannot be written as an ion equation. The reaction phenomenon is the formation of black mercury sulfur solid. In general, since most of these reactions were solid-state reactions or did not carry out the ionisation process in the solution system, there was basically no ion equation. Most of the reaction phenomena were the formation of the corresponding sulfur solid, and the color of the solid was different. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-07-16 17:25

Diagram of the kinetic change of sulfur dioxide to sulfuric acid reaction

You just gave it the name " Diagram of the kinetic change of sulfur dioxide to sulfuric acid reaction ". There's no more content. I can't reorganize it according to the requirements. You can add some information such as the characteristics of this chart and the relevant reaction conditions. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

1 answer
2026-08-09 09:59
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z