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anonymous

  • 4 years ago

With the help of balanced chemical equation explain what happens when:(1)Zinc is put in dilute hydrochloric acid (2)Zinc is put in concentrated sodium hydroxide.(3)Hydrogen is passed over hot tungsten oxide.(40Hydrogen is reacted with carbon monoxide in presence of a catalyst.

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  1. anonymous
    • 4 years ago
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    (1) Zn+2HCl------> ZnCl2+H2 (2) Zn+ 2NaOH--------->Na2ZnO2+H2 (3) 3H2+W2O3-----------> 3H2O+2W (4) CO + 2H2-------> CH3OH

  2. Shayaan_Mustafa
    • 4 years ago
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    1) Metal+Acid-->Salt+Hydrogen gas \[Zn _{(s)}+2HCl _{(aq)} \rightarrow ZnCl _{2(s)}+H _{2(g)}\] 2) Base reacts with metals and release hydrogen gas. REMEMBER NOT ALL METALS REACT WITH BASE.\[Zn+2NaOH \rightarrow Na _{2}ZnO _{2}+H _{2}\] 3)\[3H _{2}+W _{2}O _{3}\rightarrow 3H _{2}O+2W\] 4) \[CO+2H _{2}\rightarrow CH _{3}OH\] Regards, Read my Profile. :D

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