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An oxidizing acid is a Brønsted acid that is a strong oxidizing agent. All Brønsted acids can act as oxidizing agents, because the acidic proton can be reduced to hydrogen gas." The whole sentence is written in a very convoluted fashion, and it is partially wrong as well. Someone should improve this Wikipedia section. All they are saying is that strong ...


7

Current IUPAC recommendations suggest following electronegativity ordering. The symbol for iron (a less electronegative element among the two) should be written first: $\ce{FeCo}.$ From the section IR-4.4 Sequence of citation of symbols in formulae [1, pp. 58–59]: IR-4.4.2 Ordering principles IR-4.4.2.1 Electronegativity If electronegativity is taken as the ...


5

The value $\bf{4-88}$ can be described as follows: $\bf{4}$: This represents the viscosity (in $\pu{mPa s}$) of a $4\%$ solution in water at $\pu{20 ^\circ C}$. This value is somewhat proportional to the molecular weight of the polymer chain. $\bf{88}$: This represents the percentage of moles of acetate ester that were hydrolyzed, since polyvinyl alcohol is ...


4

The definition of oxidation and reduction are Oxidation is the loss of electrons or an increase in the oxidation state of an atom, an ion, or of certain atoms in a molecule. Reduction is the gain of electrons or a decrease in the oxidation state of an atom, an ion, or of certain atoms in a molecule. By this definition a $\ce{H+}$ ion can gain an electron ...


2

All acids are oxidizing. They are all able to oxidize metals $\ce{M}$ whose redox potentials are negative with respect to hydrogen, like zinc $\ce{Zn} ~(E° = - 0.76~\mathrm V$), iron $\ce{Fe}~ (E° = -0.41~\mathrm V)$, and magnesium $\ce{Mg} ~(E° = -2.37~\mathrm V)$. The reaction produces some hydrogen gas $\ce{H2}$ and the metallic cation $\ce{M^{z+}}$. But ...


1

Platinum(IV) chloride adopt an octahedral coordination geometry. This geometry is achieved by forming a polymer wherein half of the chloride ligands bridge between the platinum centers. So, whenever it is dissolved in some acids, say $\ce{HCl}$, the chloride bridging ligands breaks and the molecules gets added giving $\ce{H2PtCl6}$, also called ...


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