Question

kya hota h jab zinc ko hydrochloric aml m pravahit kiya jata h​

Answer 1

Explanation:

Zn+2HCl------> ZnCl2 +H2

Answer 2

Zn+2HCl-->ZnCl2+H2

Observation:

• The metal zinc readily reacts with hydrochloric acid to produce hydrogen gas (H2) and zinc chloride (ZnCl2).
• Every chemical reaction either produces or absorbs heat. In chemistry this effect is described as the reaction enthalpy.
• The zinc reaction produces the heat and hence has the negative enthalpy.
• Zinc reacts quickly with the acid to form bubbles of hydrogen.

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