in Zn we use 3% decolorizer, while in modified 1% h2so4 is used, modified is used for paracite like Cryptosporidium, cyclosporidium and bacterias like nocaddia and actinomyces. also in modified heating isn't done.
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The main difference between ZN (Ziehl-Neelsen) stain and modified ZN stain is the addition of a decolorizing agent such as acid-alcohol in the modified version. This allows for better differentiation between acid-fast bacteria (such as Mycobacterium spp.) and non-acid-fast bacteria in samples. The modified ZN stain is considered more sensitive and specific compared to the traditional ZN stain.
Ionic bond will be formed between Zn and Cl. Zinc (Zn) is a metal and Chlorine (Cl) is a non-metal, resulting in the transfer of electrons from Zn to Cl, leading to the formation of an ionic bond.
The skeleton equation for the reaction between zinc (Zn) and hydrochloric acid (HCl) is: Zn + 2HCl -> ZnCl2 + H2
The balanced equation for the reaction between hydrochloric acid (HCl) and zinc (Zn) is: 2HCl + Zn -> ZnCl2 + H2
The balanced equation for the reaction between zinc (Zn) and copper (II) bromide (CuBr2) is: Zn + CuBr2 → ZnBr2 + Cu
The word equation for the reaction between zinc carbonate and nitric acid is: zinc carbonate + nitric acid → zinc nitrate + carbon dioxide + water.