Economic growth can be stimulated by reduction of taxes, ensuring stability oľ the tax law as well as an equal treatment of economic units. Moreover, economic growth is promoted also by income tax reductions for investment spendings, simplification of the tax law and tax recording principles as well as adjustment of taxation forms to tax systems followed by the EU countries.
Potential of zero charge (pzc) of gold in solutions with constant mole concentration of ions in the range pH 1,5-11 was measured. Measurements were carried out by the inversion immersion method with application of an automatic measuring equipment. Empirical formula of linear reciprocality of pzc of gold in the pH function was given.
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