: Zinc electrode ( anode ): Zn ( s ) → Zn < sup > 2 +</ sup >( aq ) + 2 e < sup >–</ sup >

: Zn ( s ) | Zn < sup > 2 +</ sup > ( 1M ) || Cu < sup > 2 +</ sup > ( 1M ) | Cu ( s )

Conversely, if the measured potential is negative, the electrode is more oxidizing than the SHE ( such as Zn in ZnSO < sub > 4 </ sub > where the standard electrode potential is − 0. 76 V ).

Large divalent ions such as Ca < sup > 2 +</ sup >, Zn < sup > 2 +</ sup >, Sn < sup > 2 +</ sup > and Pb < sup > 2 +</ sup > have a pK < sub > a </ sub > of 6 or more and would not normally be classed as acids, but small divalent ions such as Be < sup > 2 +</ sup > undergo extensive hydrolysis.

Other examples include organomagnesium compounds like iodo ( methyl ) magnesium MeMgI, diethylmagnesium ( Et < sub > 2 </ sub > Mg ), and all Grignard reagents ; organolithium compounds such as n-butyllithium ( n-BuLi ), organozinc compounds such as diethylzinc ( Et < sub > 2 </ sub > Zn ) and chloro ( ethoxycarbonylmethyl ) zinc ( ClZnCH < sub > 2 </ sub > C (= O ) OEt ); and organocopper compounds such as lithium dimethylcuprate ( Li < sup >+</ sup >< sup >–</ sup >).

< tr >< td > Zn </ td >< td > 0. 88 </ td ></ tr >

: Zn < sub >( s )</ sub > + 2OH < sup >−</ sup >< sub >( aq )</ sub > → ZnO < sub >( s )</ sub > + H < sub > 2 </ sub > O < sub >( l )</ sub > + 2e < sup >−</ sup > =-1. 28 V

< tr >< td > zinc ( Zn ) </ td >< td > 140 </ td > < td > 720 </ td >< td > 65 </ td >< td > 800 </ td ></ tr >

: Anode: Zn + 4OH < sup >–</ sup > → Zn ( OH )< sub > 4 </ sub >< sup > 2 –</ sup > + 2e < sup >–</ sup > ( E < sub > 0 </ sub >

: Fluid: Zn ( OH )< sub > 4 </ sub >< sup > 2 –</ sup > → ZnO + H < sub > 2 </ sub > O + 2OH < sup >–</ sup >

: Zn < sub >( s )</ sub > → Zn < sup > 2 +</ sup >< sub >( aq )</ sub > + 2e < sup >-</ sup >.

< td bgcolor ="# EEEEEE " align =" center "> Zincate ( Zn ( OH )< sub > 4 </ sub >< sup > 2 −</ sup >)</ td >

;< sup > 198 </ sup > Pt (< sup > 70 </ sup > Zn, xn )< sup > 268 − x </ sup > Hs

** Franklinite: ( Fe, Mn, Zn )( Fe, Mn )< sub > 2 </ sub > O < sub > 4 </ sub >

** Zinc ferrite: ( Zn, Fe ) Fe < sub > 2 </ sub > O < sub > 4 </ sub >

* Pyridoxine → Pyridoxamine → Pyridoxal → PLP ( requires Zn < sup > 2 +</ sup > as a cofactor )

* Zinc silicate Zn < sub > 4 </ sub > Si < sub > 2 </ sub > O < sub > 7 </ sub >( OH )< sub > 2 </ sub >· H < sub > 2 </ sub > O or hemimorphite.

Cysteine residues may also react with heavy metal ions ( Zn < sup > 2 +</ sup >, Cd < sup > 2 +</ sup >, Pb < sup > 2 +</ sup >, Hg < sup > 2 +</ sup >, Ag < sup >+</ sup >) because of the high affinity between the soft sulfide and the soft metal ( see hard and soft acids and bases ).

There are many different classes of P-ATPases, each of which transports a specific type of ion: H < sup >+</ sup >, Na < sup >+</ sup >, K < sup >+</ sup >, Mg < sup > 2 +</ sup >, Ca < sup > 2 +</ sup >, Ag < sup >+</ sup > and Ag < sup > 2 +</ sup >, Zn < sup > 2 +</ sup >, Co < sup > 2 +</ sup >, Pb < sup > 2 +</ sup >, Ni < sup > 2 +</ sup >, Cd < sup > 2 +</ sup >, Cu < sup >+</ sup > and Cu < sup > 2 +</ sup >.

More recently, mining companies such as Speidel ( 1905 – 1912 ) and Vielle Montagne ( 1925 – 1930 ) exploited the Zn-Pb ( calamine ) ores, which had reported grades over 12 % Zn + Pb.

It is estimated that total mineral production during the period 1905 – 1964 was about 2 million tonnes of calamine ( 12 % Zn + Pb ) and 3 million tonnes of iron ore ( 44 % Fe ).

* In acid: ZnO + 2H < sup >+</ sup > → Zn < sup > 2 +</ sup > + H < sub > 2 </ sub > O

: As < sub > 2 </ sub > O < sub > 3 </ sub > + 6 Zn + 12 HNO < sub > 3 </ sub > → 2 AsH < sub > 3 </ sub > + 6 Zn ( NO < sub > 3 </ sub >)< sub > 2 </ sub > + 3 H < sub > 2 </ sub > O

: Oxidation: Zn → Zn < sup > 2 +</ sup > + 2 e < sup >−</ sup >

: As < sub > 2 </ sub > O < sub > 3 </ sub > + 6 Zn + 6 H < sup >+</ sup > → 2 As < sup > 3 −</ sup > + 6 Zn < sup > 2 +</ sup > + 3 H < sub > 2 </ sub > O

:: Zn → Zn < sup > 2 +</ sup > + 2e < sup >−</ sup >

: Zn ( s ) → Zn < sup > 2 +</ sup >( aq ) + 2 e < sup >−</ sup > = − 1. 04 volts

and the Cl < sup >−</ sup > combines with the Zn < sup > 2 +</ sup >.

These nodes are areas where the action potential is amplified using a high density of sodium ( Na < big >+</ big >) ions and is subsequently passed along the axon.

where < big ></ big > is the number of degrees of freedom divided by two, R is the universal gas constant and n is the number of moles in the system ( a constant ).

The glyphs most commonly used in conjunction with the Latin script since early modern times are < big > 0 1 2 3 4 5 6 7 8 9 </ big >.

: 2H < sup >+</ sup > + 2e < sup >−</ sup > < big >< big >→</ big ></ big > H < sub > 2 </ sub >

# H < sub > 3 </ sub > O < sup >+</ sup >( aq ) + Cl < sup >−</ sup >( aq ) + NH < sub > 3 </ sub > → Cl < sup >−</ sup >( aq ) + NH < sub > 4 </ sub >< sup >+</ sup >( aq )

< center > Articles of Confederation 200th Anniversary commemorative stamp </ center >< center > First issued in York, Penn., 1977 </ center >

A line running from Cape Aspro ( 28 ° 16 ' E ) in Asia Minor, to Cum Burnù ( Capo della Sabbia ) the Northeast extreme of the Island of Rhodes, through the island to Cape Prasonisi, the Southwest point thereof, on to Vrontos Point ( 35 ° 33 ' N ) in Skarpanto < nowiki >< nowiki ></ nowiki >, through this island to Castello Point, the South extreme thereof, across to Cape Plaka ( East extremity of Crete ), through Crete to Agria Grabusa, the Northwest extreme thereof, thence to Cape Apolitares in Antikithera Island, through the island to Psira Rock ( off the Northwest point ) and across to Cape Trakhili in Kithera Island, through Kithera to the Northwest point ( Cape Karavugia ) and thence to Cape Santa Maria () in the Morea.

Here, < sub > n </ sub > denotes the sample mean of the first n samples ( x < sub > 1 </ sub >, ..., x < sub > n </ sub >), s < sup > 2 </ sup >< sub > n </ sub > their sample variance, and σ < sup > 2 </ sup >< sub > n </ sub > their population variance.

Carboxylic acid groups (− CO < sub > 2 </ sub > H ) can be deprotonated to become negative carboxylates (− CO < sub > 2 </ sub >< sup >−</ sup > ), and α-amino groups ( NH < sub > 2 </ sub >−) can be protonated to become positive α-ammonium groups (< sup >+</ sup > NH < sub > 3 </ sub >−).

< center >< gallery >

< center >< gallery >

< center >< gallery widths =" 230px " heights =" 200px " perrow =" 3 ">

Antimony is capable of displacing hydrogen from water, when heated: 2Sb + 3H < sub > 2 </ sub > O < big >→</ big > Sb < sub > 2 </ sub > O < sub > 3 </ sub > + 3H < sub > 2 </ sub >.

# M so that M: P < big >→</ big > Z is a place multiset, where Z is a countable set.

# W so that W: F < big >→</ big > Z is an arc multiset, so that the count for each arc is a measure arc multiplicity.

: Muhammad ibn Ibrahim al-Shami < big >→</ big > Muhammad ibn al-Hajjaj al-Lakhmi < big >→</ big > Mujalid ibn Sa ’ ed < big >→</ big > Al-Shu ' abi < big >→</ big > Ibn ‘ Abbas