All Questions
Tagged with reactivity inorganic-chemistry
54
questions
-2
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1
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45
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Why mono and dioxides of germanium,tin and lead are amphoteric
I get that group 14 elements show +4 and +2 oxidation states so they can form both ionic and covalent compounds and so they are amphoteric but monoxide means that these elements have to show +2 ...
- 41
4
votes
3
answers
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Does manganese reacts with water at "not" standard conditions?
In my answer, I stated that manganese is said to not react with water under normal conditions although some sources say it reacts with water to liberate hydrogen gas. Does it implies that it reacts ...
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3
votes
0
answers
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Does solid manganese reacts with atmospheric air when heated?
As discussed in my answer, manganese is not particularly reactive to air. The surface of manganese lumps oxidize to a minor extent but when it is finely divided, it becomes pyrophoric and burns in air....
- 26.2k
2
votes
0
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Why doesn't XeF6 displace oxygen from water?
Consider the following reactions (unbalanced):
$$
\begin{align}
\ce{XeF2 + H2O &→ Xe + HF + O2} \tag{a} \\
\ce{XeF4 + H2O &→ XeO3 + Xe + O2 + HF} \tag{b} \\
\ce{XeF6 + H2O &→ XeO3 + HF} \...
user121185
11
votes
1
answer
465
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Why does radium form a nitride rather than oxide when exposed to air?
The Wikipedia article states:
Pure radium is silvery-white, but it readily reacts with nitrogen (rather than oxygen) on exposure to air, forming a black surface layer of radium nitride ($\ce{Ra3N2}$)....
- 451
2
votes
1
answer
224
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Why is it technically inaccurate to say that the decrease in reactivity of halogens is due to decreasing electronegativity?
I came across the following information in this post.
Below the infographic there is a paragraph with a disclaimer:
As another disclaimer, the reactivity of the halogens decreasing down the group ...
- 305
4
votes
0
answers
771
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Reactivity order among Interhalogens
I was reading about Interhalogens in JD Lee and in the book it is stated that (without any reasoning) the reactivity order for few of the interhalogens is :-
$\ce{ClF_3 > BrF_5 > IF_7 > ClF &...
- 477
5
votes
1
answer
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p-Nitroaniline reaction with sulfuric acid
An alternative version of the well-known demonstration carbon snake (the dehydration reaction of sugar by concentrated sulfuric acid forming a column of graphite) consists in mixing paranitroaniline ...
- 686
-1
votes
2
answers
221
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Can a weak acid react to give a stronger acid? [closed]
I was trying to understand why $\ce{AgCl}$ does not dissolve in $\ce{HNO3}$ and the reaction I could think of was something like this:
$$\ce{AgCl + HNO3->AgNO3 + HCl}$$
I could not understand why ...
- 11
0
votes
0
answers
707
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What is the product of ammonia reacting with silicone?
I used a soft silicone hose to carry ammonia at ~70 °C. I was surprised to later find the hose had hardened.
A quick materials compatibility search for silicone had given me a lot of info but an "...
- 1,097
11
votes
2
answers
305
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Silver Tarnish and Reactivity Series
I read that silver in the presence of hydrogen sulfide corrodes to form silver sulfide and hydrogen.
$$\ce{Ag + H2S -> Ag2S + H2}$$
But in the reactivity series silver is placed much below hydrogen....
- 408
-3
votes
1
answer
104
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Wiki’s explanation of the rate of chemical reaction [closed]
Could you please help me understand the Wiki’s explanation of the rate of chemical reaction?
It says: the rate of the chemical reaction is directly proportional to the product of the activities or ...
- 71
1
vote
1
answer
2k
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Reaction of Silicon Dioxide with Hydrofluoric Acid [duplicate]
I learnt that $\ce{SiO2}$(Silicon dioxide) doesn't react with any acid except $\ce{HF}$. So what is special about $\ce{HF}$?
Why does only $\ce{HF}$ reacts with $\ce{SiO2}$ even though $\ce{HF}$ has a ...
- 181
-2
votes
1
answer
79
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Can ZrO2 be made fluoride resistant?
$\ce{ZrO2}$ has great properties, biocompatibility, chemical resistance, decent scratch resistance, great thermal resistance and refraction, but it could be better. It, like glass, will slowly react ...
3
votes
1
answer
2k
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Is silicon dioxide decomposition possible?
I was thinking about this, I made Gibbs free energy calculations and I can't figure out if
$$\ce{SiO2(s) -> Si(s) + O2(g)}$$
is actually possible, even at a ridiculous high temperature.
