granulated zinc is therefore preferred . it contains traces of copper as an impurity witch catalyses the reaction and prevents the deposition of the gas on zinc
Granulated zinc has more surface area exposed to the acid, so the reaction can occur more rapidly.
When zinc reacts with hydrochloric acid it produces zinc chloride and hydrogen gas.
Zinc chloride is ZnCl2 Hydrogen gas is H2
Zinc Hydrogen Sulfate
2 Zn + 2 HCL --> H2 + 2 ZnCl
Granulated zinc has more surface area exposed to the acid, so the reaction can occur more rapidly.
Granulated zinc has more surface area exposed to the acid, so the reaction can occur more rapidly.
Don't know, because granulated zinc IS metallic itself: solid, elemental Zn.
If there is Block of zinc, only the zinc on the surface gets exposed to the other reactants but if there is granulated zinc because of its more surface area the zinc is more exposed so the granulated zinc is used for the greater reaction rate.
Granulated zinc is used instead of a block as the surface area of granulated zinc is much more than that of a block. Hence it's easier for it to react with oxygen if the area is more. This is why it's used.
formed of grains
The Chemical equation for granulated zinc and diluted sulfuric acid is Zn + H2SO4 GIVES(arrow) ZnSO4 + H2O And impurities like arsine (AsH3), phosphine (PH3), CO2, SO2, H2O(gas.) and H2S because granulated zinc has impurities.
1. Preparation of brass 2. Steels plating 3. Preparation of zinc chloride and zinc oxide (for cosmetics and dermatology)
Hydrogen gas and a zinc salt.It produces hydrogen and zinc chloride.
When zinc reacts with hydrochloric acid it produces zinc chloride and hydrogen gas.
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Zn + H2SO4 -> ZnSO4 + H2 Produces zinc sulfate and hydrogen gas.