## Zn Sentence Examples

- Rend., 1869, 69, p. 169) obtained the sodium salt by the action of zinc on a concentrated solution of sodium bisulphite:
**Zn**+ 4NaHSO 3 = Na 2 S 2 O 4 +**ZnSO**3 + Na 2 SO 3 + 2H 2 O, the salt being separated from the sulphites formed by fractional precipitation. - Thus if concentrated instead of dilute sulphuric acid acts upon zinc, the action takes place to a great extent not according to the equation given above, but according to the equation
**Zn**+2H 2 SO 4 = ZnS04+S02+2 H20, sulphur dioxide and water being produced instead of hydrogen. - The metals may be arranged in a series according to their power of displacing one another in salt solutions, thus Cs, Rb, K, Na, Mg, Al, Mn,
**Zn**, Cd, Tl, Fe, Co, Ni, Sn, Pb, (H), Sb, Bi, As, Cu, Hg, Ag, Pd, Pt, Au. - Group II.: the alkaline earth metals Ca, Sr, Ba, and also Be (GI), Mg,
**Zn**, Cd, divalent; Hg, monovalent and divalent. - Ca, Ba, Sr, Pb; Fe,
**Zn**, Mn, Mg; Ni, Co, Cu; Ce, La, Di, Er, Y, Ca; Cu, Hg, Pb; Cd, Be, In,**Zn**; Tl, Pb. - In general in space of n dimensions we have n substitutions similar to X l = a11x1 +a12x2 + ï¿½ ï¿½ ï¿½ + ainxn, and we have to express the n 2 coefficients in terms of
**Zn**(n - I)i independent quantities; which must be possible, because X1+X2+..."IL Xn =xi+x2 +x3 +...+4. - We may therefore form an orthogonal transformation in association with every skew determinant which has its leading diagonal elements unity, for the
**Zn**(n-I) quantities b are clearly arbitrary. - Hence the produc J1 t theorem (21, Z2,...
**zn**/ (y1, Y2,...y.n) = ? - Zl, z2,...
**zn**) yl, y2,. - Yl, y 2,...yn) (zl, z2,...
**zn**z1, z 2, ï¿½ï¿½ï¿½**zn**xi, 'X' 2,... - -
**zn**+9 1 -z2.1 -z3....1-z8; and since this expression is unaltered by the interchange of n and B we prove Hermite's Law of Reciprocity, which states that the asyzygetic forms of degree 0 for the /t ie are equinumerous with those of degree n for the The degree of the covariant in the variables is e=nO-2w; consequently we are only concerned with positive terms in the developments and (w, 0, n) - (w - r; 0, n) will be negative unless nO It is convenient to enumerate the seminvariants of degree 0 and order e=n0-2w by a generating function; so, in the first written generating function for seminvariants, write z2 for z and az n for a;. - 826, Sb =0.958, Sn =1.354, Fe =0.007,
**Zn**=0.002, S =0.051. - (a+nb) is (ï¿½ 28 (i.))
**Zn**t(a+b)+ (a+nb)} = na+**zn**(n+1)b = nr1 1 .a+nr2 1. - Associated with these new units there is a system of extensive quantities of the second species, represented by symbols of the type = Ei 121 [i=I, 2,...
**zn**(n - I)]. - In terms of 1, we have from (2) 5=R-{-
**Zn**)X.. - Of minerals containing this element mention may be made of cassiterite or tinstone, Sn02, tin pyrites, Cu 4 SnS 4 + (Fe,
**Zn**) 2 SnS 4; the metal also occurs in some epidotes, and in company with columbium, tantalum and other metals. - The most important of these are aluminium and zinc, which are converted into aluminate, Al(OK,Na) 3, and zincate,
**Zn**(OK,Na) 2, respectively. - ZINC, a metallic chemical element; its symbol is
**Zn**, and atomic weight 65.37 (0= 16). - Of less importance is the silicate,
**Zn**2 SiO 4 H 2 0, named electric calamine or hemimorphite; this occurs in quantity in Altenburg near Aix-laChapelle, Sardinia, Spain and the United States (New Jersey, Pennsylvania, Missouri, Wisconsin). - Other zinc minerals are willemite,
**Zn**2 SiO 4, hydrozincite or zinc bloom,**ZnCO**3.2Zn(OH)2, zincite or red zinc ore,**ZnO**, and franklinite, 3(Fe,**Zn**)0 (Fe,Mn) 2 0 3 . - Boiling water attacks it appreciably, but slightly, with evolution of hydrogen and formation of the hydroxide,
**Zn**(OH) 2. **Zn**(OK)2] Zinc oxide is used in the arts as a white pigment (zinc white); it has not by any means the covering power of white lead, but offers the advantages of being non-poisonous and of not becoming discoloured in sulphuretted hydrogen.- Zinc hydroxide,
**Zn**(OH) 2, is prepared as a gelatinous precipitate by adding a solution of any zinc salt to caustic potash. - 3 (P04)2.4H20, and tarbuttite,
**Zn**3 (P04)2.**Zn**(OH)2, both found in Rhodesia. - According to Christy, the precipitation with zinc follows equations for 2 according as potassium cyanide is present or not: (1) 4 KAu(CN)2+4Zn+2H20=2Zn(CN)2+ K 2
**Zn**(CN) 4 +**Zn**(OK) 2 +4H+4Au; (2) 2KAu (CN) 2 +3Zn+4KCN+2H 2 0 = 2K 2**Zn**(CN) 4 +**Zn**(OK) 2 +4H+2Au; one part of zinc precipitating 3.1 parts of gold in the first case, and 2.06 in the second. - If U is the velocity of sound in a gas at pressure P with density p, and if waves of length X and frequency N are propagated through it, then the distanc?e l between the dust-heaps is 2 = N -
**zN**Vyp' where y is the ratio of the two specific heats. - FRANKLINITE, a member of the spinel group of minerals, consisting of oxides of iron, manganese and zinc in varying proportions, (Fe,
**Zn**, Mn)"(Fe, Mn) 2"'0 4. - +
**Zn**(n -I) a n_ 1=**Zn**(n+3) -2 (without which the transformation would be illusory); and the conclusion is that a 1, a 2, ... - Considering the curves of the order n which satisfy
**Zn**(n+3) - 1 conditions, then the index N is the number of these curves which pass through a given arbitrary point. - Calcium ferrite, magnesium ferrite and zinc ferrite, ROFe203(R=Ca, Mg,
**Zn**), are obtained by intensely heating mixtures of the oxides; magnesium ferrite occurs in nature as the mineral magnoferrite, and zinc ferrite as franklinite, both forming black octahedra.