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Search options title chemical* questions only not deleted
0 votes
2 answers
6k views

Chemical processes and chemical reactions difference

Whats the difference between chemical processes and chemical reactions? … Ive heard that the chemical industries only uses chemical processes to produce new substances, but isnt that also what happens when a chemical reaction occurs? …
user avatar
0 votes
1 answer
526 views

Chemical in (s) mixed with chemical in (aq) vs. chemical in (aq) mixed with chemical in (aq)

But I am wondering, does it make a difference if you take a powder and mix it with an aqueous solution or take a solution with the very same chemical formula as the powder and mix it with the same aqueous …
javanewbie's user avatar
3 votes
0 answers
169 views

Meaning of chemical potential in chemical reactions

Now, this should be true for a closed system undergoing a chemical reaction, so the 3rd term on the RHS could be non-zero. … In other words, my question is how do I physically interpret the chemical potential term? …
Peter's user avatar
  • 117
26 votes
4 answers
4k views

Relation between chemical kinetics and chemical equilibrium

In my chemistry book, the law of chemical equilibrium is derived from the law of mass action: For a reversible chemical reaction $$\ce{aA +bB\rightleftharpoons cC + dD}$$ where $a$, $b$, $c$ and $d$ are … However, in chemical kinetics, they tell us that the rate equation, derived from the law of mass action is not always correct. …
S R Maiti's user avatar
  • 5,735
3 votes
1 answer
507 views

Chemical desalination

Is there a way to remove salt from water, even just partially, using chemical or filtration methods prior to a reverse osmosis? …
Shaka Boom's user avatar
  • 2,354
1 vote
2 answers
88 views

Chemical compatibility

I'm an electrical engineer trying to understand a failure in a plastic part that I'm working with. I am using a plastic called polysulfone- and the data sheet has a lot of words ending in "amine" tha …
Jay's user avatar
  • 11
3 votes
0 answers
45 views

Translucifying chemical? [closed]

Is there a chemical that this supposed chestnut could have possibly been dipped in, to give it this translucence? …
andersj's user avatar
  • 31
1 vote
0 answers
24 views

Chemical bonding [duplicate]

How do we compare the strength of permanent dipole permanent dipole (PDPD) interaction? Is it by bond polarity? Since H-X (where X is halogen) is polar, and for bond polarity (PDPD bond strength): HC …
user56837's user avatar
-3 votes
1 answer
50 views

chemical bonding

How exactly does bonding work? For example, in CH4 orbital overlap structure, the internet shows 4 lobes with one hydrogen attached to each... does the s orbital of the carbon we consider after hybri …
squidward's user avatar
0 votes
2 answers
79 views

Chemical reaction

Consider the following Ca(OH)2 + 2NH4Cl → CaCl2 + 2NH3 + 2H2O (Source: https://chemiday.com/en/reaction/3-1-0-440) It appears to be double displacement reaction as CaCl2 is formed, but it’s not as …
user avatar
-2 votes
1 answer
37 views

Chemical equilibrium [duplicate]

When calculating equilibrium constant with partial pressures if there is a solid involved should we consider it in the total number of moles in mole fraction?
Drfrankphd Boom's user avatar
6 votes
1 answer
922 views

Chemical kinetics

Consider a reversible reaction $\ce{A}$ converts to $\ce{B}$ and $\ce{B}$ converts to $\ce{A}$ with forward and backward rate constants $k_\mathrm{fwd} = k_\mathrm{rev }= \pu{1 s-1}.$ Suppose we st …
Nikhil Verma's user avatar
-1 votes
1 answer
416 views

Is there a chemical reaction without a chemical change? [closed]

Chemical transformation alters the chemical properties of a material, which includes reactivity with various chemical species. … Can a chemical reaction happen without a transformation? There is a chemical balance that pH and chemical properties do not change ... …
trombho's user avatar
  • 109
1 vote
1 answer
229 views

Do high-energy chemical bonds indicate strong chemical bonds?

In my head it seems reasonable that a high-energy bond would indicate that the bond is strong, however a question got me thinking. Take for example lead azide, a very explosive compound that is often …
Jack's user avatar
  • 35
3 votes
1 answer
151 views

Continuous chemical reaction network versus chemical reaction network - difference?

I'm reading a paper entitled Reachability Problems for Continuous Chemical Reaction Networks and as I was reading it I realized: I have no idea what the difference is between a continuous chemical reaction … network (CCRN) and a chemical reaction network (CRN). …
auden's user avatar
  • 447

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