Questions tagged [reactivity]
Applied to a chemical species, the term expresses a kinetic property in reference to another species. The tag should be applied to questions seeking answers with respect to the reactivity (or unreactivity) of a certain chemical compound, species, molecular entity and/or functional groups. It must not be applied to questions about the stability of certain chemical species.
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SN2 nucleophilic substitution reaction push and pull transition state
in 4 chloroquinazoline ring, if alphamethylbenzylamine reats with it, this is SN2 nucleophilic substitution reaction, so when the lone pairs of nitrogen attacks the carbon , in the pull and push ...
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Polarized Bond and Bond Strength Relationship
So more polarized bonds are generally stronger ($\ce{C-O}$ bond energy $> \ce{C-C}$ bond energy), but more polarized bonds are also more reactive... is this something to simply accept?
So, taking ...
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Is there a gaseous or liquid precursor to metallic lanthanum?
How to deposit a thin layer of lanthanum metal inside the porous structure of a gel? The gel itself is not going to react with $\ce{La}$ but how to make sure that the byproducts are removable by ...
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Will Triflic Acid Damage PTFE?
We recently received an ampule of trifluoromethanesulfonic acid (TFSA) for use in upcoming experiments in the lab. Once we open the ampule we'll need a bottle to store it in. We have amber glass vials ...
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How to dissolve Chromium (III) Oxide in an acid
I've been trying to dissolve Chromium (III) Oxide in an acid in order to eventually make Chromium (III) Hydroxide, but attempts from online sources that have stated this should work have failed. I've ...
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Differences between Oxides and Hydroxides when Formed from a Metal and Water
When Group 1 and 2 metals (other than beryllium) react with liquid water, they will form that metal hydroxide and hydrogen gas, at different rates, per reactivity. When other reactive metals react ...
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By-products of cleaning glassware with chromic acid
Currently, my lab employs chromic/sulfuric acid bath to clean glassware. Currently, our baths are more brownish/green (but not yet green like chromium (III)), rather then deep orange when freshly ...
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White powder-like substance on top of sodium hydroxide solution
i've made sodium hydroxide solution adding 100g of hydroxide to water 100g. i've been adding it slowly and constantly stirring. few days later on top of solution was thick layer of white powder. it ...
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(Di)chlorination of phosphonic acid ester
What is the best way to do this reaction to form the dichloride as an reactive intermediate when the substituent R is acid sensitive?
In the literature the reaction is either performed with PCl5, a ...
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Are there any chiral molecules that react with their opposites?
Total layman's question just out of pure curiosity.
Are there any examples of a chiral molecule where a reaction takes place when two mirrored molecules interact? Or are these interactions always ...
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Calculation of Reaction Extent as a Function of Pressure and Temperature: Issue with Activity-Based Approach
I'm working on modeling reactions involving combinations of hydrogen (H), nitrogen (N), and strontium (Sr) elements. I've obtained the temperature-dependent Gibbs free energy of formation, enthalpy, ...
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Reaction between sodium hydroxide and glass? [duplicate]
In terms of storage, I thought that glass was the safest bet for chemicals: No leeching, no real degradation (neglecting it's an amorphous solid), affordable, etc...
However, I recently heard that ...
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Is HCl in salt form reactive with metallized aluminium plastic film? [closed]
I’m in the process of packaging an amino acid that contains HCl in salt form. The mixture is 60% base and 40% HCl salt.
Will this react to metallized aluminium plastic?
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Why can't the diene in a diels-alder also be a dienophile [closed]
why can't the diene react with itself like this
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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 ...
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Can the relative reactivity of metals be explained by ionization energy and/or electronegativity?
I'm a 9th grade physical science teacher, and we're currently learning periodic trends. This is the first chemistry my students have learned. One of our labs for this unit has to do with the relative ...
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How does the Eschweiler Clarke reaction occur with sodium cyanoborohydride as a reducing agent?
I am specifically confused with 2 concepts.
How sodium cyanoborohydride acts as a reducing agent. I read that it acts as a source of hydride but I am not sure how this works. If anything, I assumed ...
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Comparing reactivity of benzaldehyde and 2-butanone for nucleophilic addition
I was taught that, in general, aldehydes are more reactive than ketones because of two reasons: 1) less steric hindrance, and 2) alkyl groups on both sides of carbonyl group in ketones have a stronger ...
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Reactivity of Alkyl Halides with E2 with same number of substituents in the end
I have a question regarding the reactivity of alkyl halide for E2. I know that the general rule is tertiary alkyl halide reacts the fastest with E2, and primary alkyl halide reacts the slowest.
I was ...
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Order of radical dimerization ability
In a question I came across recently, it was asked to arrange the following radicals in the ascending order of dimerization ability.
I have read about the triphenylmethyl radical undergoing Gomberg ...
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Effect of phosphoric acid on chrome plating
Wondering whether phosphoric acid a suitable agent to clean chrome plated bathroom figments - a metal base shower head
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Improve the leaving capability of a leaving group (F-) with electron density donating groups (EDP) in close proximity (neighboring group effect)?
I have a situation in which I want to hydrolyze a phosphonic acid halide under basic conditions. In my specific case, the halide is a fluorine substituent. Other halides like chlorine and bromine are ...
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Drano and Bleach reaction? [closed]
I’m not sure if anyone can answer this but I might’ve messed up, or I’m just overreacting.
My bathtub has been clogged for about a month now and I used a splash of Drano to see if it would do anything,...
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Why do stable covalent compounds react with water [closed]
I am curious why a discrete covalent molecular substance, say CO2, would react with water to form an acid, what happens in such a reaction? I'm assuming it has something to do with disassociated ions ...
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Is there an international standard for rating the danger of chemical elements?
I'm writing a small little tool (something like an interactive periodic table) and I wanted a good "guesstimate" of the danger of certain elements, to visualize across said table.
I could go ...
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Why does silver react preferentially with chlorine instead of chromate?
Mohr's method of precipitation titration relies on the fact that silver reacts preferentially with chloride ions instead of chromate ions in solution. When I searched up why this is true, the only ...
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Why can't RX add to alkenes / alkynes like HX?
With an analogous mechanism: C bonded to X has a δ+ charge and attacks the pi electrons to form a carbocation intermediate, with X- as a leaving group. X- then adds to the carbocation to neutralize it....
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Why are cyanamides more electrophilic than nitriles?
According to https://www.researchgate.net/publication/6642597_A_generally_applicable_method_for_assessing_the_electrophilicity_and_reactivity_of_diverse_nitrile-containing_compounds, cyanamides (...
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Can you oxidize gold using only oxygen?
I keep reading that gold does not react with oxygen, but I also see information about gold Oxides (ie: aurous oxide, Au2O and auric oxide, Au2O3)
Knowing that there is a way of getting gold oxide ...
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Can the relative velocity of two colliding molecules be too large to allow reaction to occur?
In a collision between two molecules, can the relative velocity of one with respect to the other be too large for a reaction to occur? For example, suppose that two molecules collide with (a) a ...
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Why bromoacetone is more reactive towards SN2 than alkyl bromides? [duplicate]
Compare the rates towards SN2 reaction:
I got the point that 2-bromobutane d is a secondary halide, so the steric hinderance is highest making it least reactive among the four. Both b and c are ...
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Can alkyl halides react with guanidine/guanidino groups?
I wonder how the π delocalization of guanidino groups affects the reactivity of the terminal nitrogens with respect to alkyl halides compared to, say, primary amines?
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What drives double displacement reactions?
I have two questions:
I understand that in a displacement reaction the more reactive element displace the less reactive element. But why? In the reaction with Zinc and Copper Sulfate, we form Copper ...
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Understanding grades of steel for cookware. 18/10 vs 18/8
I am looking for a stainless steel cookware and while researching on the best kind of stainless steel cookware, I came across this comment on youtube:
Actually 18/10 steel is better and costlier. You'...
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What makes a compound high or low energy and why does that relate to reactivity? [closed]
After reading about thermodynamic stability, it now makes sense to me how the enthalpy of a reaction relates to the thermodynamic stability of a compound.
However, when looking for a clear way to ...
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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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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....
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Oxidation Reactions/Reactivity of Manganese Metal in Air and Water
I am planning on doing some reactions that lead to Manganese metal and a neutral solution containing $\ce{Mn^{2+}}$ as by-products, and I wanted to try some things out with the Manganese as well.
...
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Where does the energy required to initially begin the reaction of iron and oxygen come from?
When iron is left outside, over time it reacts with oxygen to form iron oxide or rust. But how does the oxygen react with iron, isn't iron held together by strong metallic bonds? Where does this ...
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How to explain mesylate structural homologues (e.g., "esylate") being weaker leaving groups than mesylate itself?
I came across a piece of scientific literature (https://patents.google.com/patent/US20080045602A1/en) that would seem to imply leaving groups formed by reacting hydroxy groups with, e.g., ...
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How should the reactivity of 1-propanesulfonyl chloride be expected to compare to tosyl chloride for sulfonylation?
I've come across some scientific literature (e.g., https://doi.org/10.1021/jm400751p) that notably feature 1-propanesulfonyl chloride (PsCl) in the selective activation of hydroxy groups, such as a ...
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Does nickel precipetate gold and copper?
I dissolved some CPU s and RAM s in aqua regia the day after I found a green solution with black powder in the bottom. So what just happened is it nickel or tin from solder?
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Displacement Reaction [closed]
In a displacement reaction I understand that the more reactive metal essentially takes the place of the less reactive metal. But I can't seem to understand how this more reactive metal can break the ...
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Reactivity vs Stability: Chlorine Trifluoride
Chlorine trifluoride shows up on many pop science content, which is how I learned about it just today, as an incredibly reactive compound capable of oxidizing seemingly incombustible substances (glass,...
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Why urea crystallizes in aqua regia? [closed]
Recently I stripped gold from old cpu's with ferrous chloride after that I rinsed the cpu's and dissolved them in the aqua regia to get the gold inside when all done, I added urea solution to the ...
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In school, I learnt that Potassium is the most reactive element in the reactivity series. I thought it was Francium?
In school, I learnt that Potassium is the most reactive element in the reactivity series. In the periodic table, the further you go down the more reactive the elemnt is. If this is true, then shouldn'...
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Why does a carbon double bond "break readily" but this is not so for other elements (nitrogen double and triple bonds are stronger)? [duplicate]
A level chemistry student here, fairly basic question. We always learnt (from GCSE bond enthalpies) that "Bigger bonds are stronger", so to speak; my teacher often quoted $\ce{N#N}$ as very ...
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Can metal displacement reactions happen with insoluable salts?
I know how normal metal displacement reactions work. If one metal is more reactive than the other, they will displace.
For example, normally for this reaction:
$$\ce{Fe_{(s)} + 2AgCl_{(aq)} -> Fe^{+...
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Why doesn't XeF6 displace oxygen from water?
Consider the following reactions (unbalanced):
$$
\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
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Are intermediate bulk container units suitable for storage of isopropyl alcohol? [closed]
I'm working in water treatment construction and my boss is going to be stocking isopropyl alcohol (IPA).
He wants to store the chemical in bulk, with amounts ranging from 5000 L to 10000 L in IBC ...
