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What cause the effervescence during the reaction of HCl and Zinc?
Wiki User
∙ 12y ago
Zn + 2HCl -> ZnCl2 + H2
As you can see it is the hydrogen gas released in this reaction, which causes the effervescence.
Just to note, in any reaction between a reactive metal and an acid, hydrogen gas is always produced.
Wiki User
∙ 12y ago
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What will happen when a piece of zinc is added to dilute hydrochloric acid?
Zinc + Hydrochloric acid is a basic metal acid reaction. When the Zinc is added to the acid, the zinc dissolves and reacts with the acid, forming hydrogen gas and the salt Zinc Chloride. These sorts of reactions (metal + acid) will always result in a salt (in this case, zinc chloride) and hydrogen gas. The observations from this experiment would be white-gray solid is added to colorless liquid. Solid dissolves and a colorless, odorless gas is formed. Zn + 2HCl -----> ZnCl2 + H2
What reaction would Zn S be?
2ZnS + 3O2 ---> 2ZnO + 2SO2 Zinc sulphide + Oxygen ---> Zinc oxide + Sulphur dioxide This reaction is endothermic and requires a heat change (H) in order to happen. As the Zinc sulphide reacts with the oxygen the zinc becomes oxidised (oxidation, zinc atoms bond to oxygen atoms), and during this reaction sulphur dioxide is given off.
What is the equation for the reaction between zinc and phenol?
reaction b/w phenol and zinc yield benzene by reduction.
Reaction between zinc and lead 2 nitrate?
Zinc and Iodide combine to form zinc iodide. The reaction is a combination reaction and also a redox reaction. A combination reaction is when two elements combine to form a single compound. A redox reaction is when one of the element loses an electron (zinc) and the other one gains electrons (iodide). Hope this helps! ~Kim
What type of reaction is this 2ZnO plus C gives 2Zn plus CO2?
This is an oxidation-reduction reaction. The carbon reduces the zinc oxide to zinc and the zinc oxide oxidises the carbon to carbon dioxide. It can also be called a displacement reaction, as the carbon displaces the zinc from its oxide.
During reaction of zinc and sulfuric acid what happens to zinc granules?
They get converted to zinc sulfate
What will happen when a piece of zinc is added to dilute hydrochloric acid?
Zinc + Hydrochloric acid is a basic metal acid reaction. When the Zinc is added to the acid, the zinc dissolves and reacts with the acid, forming hydrogen gas and the salt Zinc Chloride. These sorts of reactions (metal + acid) will always result in a salt (in this case, zinc chloride) and hydrogen gas. The observations from this experiment would be white-gray solid is added to colorless liquid. Solid dissolves and a colorless, odorless gas is formed. Zn + 2HCl -----> ZnCl2 + H2
Zinc carbonate hydrochloric acid zinc chloride water carbon dioxide?
you can use the hydrochloric acid to differentiate between the zinc carbonate and zinc chloride as the zinc carbonate will give effervescence and the gas produced (carbon dioxide) turns lime water milky..and the zinc chloride will give no ppt
What happens when you put zinc in hydrochloric acid?
What happens??? It reacts!!!! You will see effervescence(bubbles) of hydrogen gas being liberates, and the zinc metal slowly disappearing. Here is the Balanced reaction eq'n Zn(s) + 2HCl(aq) = ZnCl2(aq) + H2(g) .
What happens when Sodium Hydroxide is heated with Zinc?
it would speed the reaction. With enough heat and pressure you can cause an explosion
What reaction would Zn S be?
2ZnS + 3O2 ---> 2ZnO + 2SO2 Zinc sulphide + Oxygen ---> Zinc oxide + Sulphur dioxide This reaction is endothermic and requires a heat change (H) in order to happen. As the Zinc sulphide reacts with the oxygen the zinc becomes oxidised (oxidation, zinc atoms bond to oxygen atoms), and during this reaction sulphur dioxide is given off.
What is the equation for the reaction between zinc and phenol?
reaction b/w phenol and zinc yield benzene by reduction.
Reaction between zinc and lead 2 nitrate?
Zinc and Iodide combine to form zinc iodide. The reaction is a combination reaction and also a redox reaction. A combination reaction is when two elements combine to form a single compound. A redox reaction is when one of the element loses an electron (zinc) and the other one gains electrons (iodide). Hope this helps! ~Kim
Reaction of zinc sulphate with potassium ferro cyanide?
reaction of zinc sulphate with potassium ferrocyanide gives potssium zinc ferrocyanide. K2Zn3[Fe(CN)6]2
What type of reaction is this 2ZnO plus C gives 2Zn plus CO2?
This is an oxidation-reduction reaction. The carbon reduces the zinc oxide to zinc and the zinc oxide oxidises the carbon to carbon dioxide. It can also be called a displacement reaction, as the carbon displaces the zinc from its oxide.
What is the reaction when you mix zinc carbonate and hydrochloric acid?
You will get a positive result for hydrogen because the reaction of zinc and hydrochloric acid produces zinc chloride and hydrogen. The chlorine atoms from the hydrochloric acid attach to the zinc, leaving the hydrogen behind and thus, you have hydrogen.
How can you get zinc chloride by adding zinc sulphate into sodium chloride?
The reaction is not possible.
