In chemistry, a radical is an atom, molecule, or ion that has an unpaired valence electron.
With some exceptions, these unpaired electrons make radicals highly chemically reactive. Many radicals spontaneously dimerize. Most organic radicals have short lifetimes.
A notable example of a radical is the hydroxyl radical (HO·), a molecule that has one unpaired electron on the oxygen atom. Two other examples are triplet oxygen and triplet carbene (꞉CH2) which have two unpaired electrons.
Radicals may be generated in a number of ways, but typical methods involve redox reactions. Ionizing radiation, heat, electrical discharges, and electrolysis are known to produce radicals. Radicals are intermediates in many chemical reactions, more so than is apparent from the balanced equations.
Radicals are important in combustion, atmospheric chemistry, polymerization, plasma chemistry, biochemistry, and many other chemical processes. A majority of natural products are generated by radical-generating enzymes. In living organisms, the radicals superoxide and nitric oxide and their reaction products regulate many processes, such as control of vascular tone and thus blood pressure. They also play a key role in the intermediary metabolism of various biological compounds. Such radicals can even be messengers in a process dubbed redox signaling. A radical may be trapped within a solvent cage or be otherwise bound.
hey, just a really quick question, any help wud be great,
is it possible to simplify this radical further?
p = sqrt root (6/70q^2)
thx in advance for help.
This is probably easy for everyone on this forum but me. Can someone please explain this to me.
I need to simplify this:
(sqrt(x) - 4) / (x - 16))
am I on the right track by doing it this way...
(sqrt(x) - 4) / (sqrt(x) - 4) (sqrt(x) + 4) ...then cancel the (sqrt(x) - 4) in the...
... or would it be inert to it as well? And if this depends on the particular gas and radical, could you give an example of when a reaction would/wouldn't occur?
Quadratic equation and Radical function!
Please help with these two problems!
1) a) Find a radical function where f(4)=0 and f(16)=6
b) Find a radical function where f(4)=0 and f(2)=2
2) a) find a quadratic function where the vertex is (3,-1) and has a vertical intercept of (0,8)...
In attempting to prove an algebraic identity in physics, I found that my proof was simplified in appearance if i used an operation
a@b=a + b - ab
By flipping through a book on ring theory, I found that this is called a "circle composition operation", and it is used in one definition of the...
Simplify
sqrt(11+sqrt72)) + sqrt(11-sqrt(72))
better picture here
http://members.rogers.com/agentj/images/math.jpg
I don't know where to begin for this one, but apparently my calculator says the answer is 6 :redface:
Simplify (y^-3 - x^-3) / (xy^-1 + x^-1y + 1)
better picture of it here
http://members.rogers.com/agentj/images/math2.jpg
I tried flipping the variables with negative exponents to the numerator and denominator, but then had no idea what to do next :frown:
radical “Selfish Biocosm”
Anyone heard of this?
http://www.biocosm.org/
PDF link with the foreword and outline.
http://www.biocosm.org/BIOCOSMRoman.pdf
Looking for theories that describe "time" The more radical the better.
I'm trying to start up some interesting conversations about time at
http://thinkbling.com/forum
Please post any comments that you may have and want shared there.
For now this will only be for this category.