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Can escape of hydrogen during the reaction between zinc and dilute sulphuric acid be described as being accompanied by effervesence?

2007-03-25 02:49:47 · 4 answers · asked by Boulevard of broken dreams 1 in Science & Mathematics Chemistry

4 answers

Yes when zinc reacts with HCl the zinc displaces the Hydrogen gas. that is what causes the bubbles or effervesence
Zn + 2 HCl → ZnCl2 + H2

Effervescence is:
The bubbling of a solution of an element or chemical compound as the result of the emission of gas without the application of heat; for example, the escape of carbon dioxide from carbonated water.

2007-03-25 03:00:45 · answer #1 · answered by Anonymous · 0 0

Effervescence is a Foaming formed as a result of a gas being evolved from a solid or liquid , and you are right the2 reaction between zinc and dilute sulphuric acid would produce effervescence.

other examples are

Effervescence is the escape of gas from an aqueous solution. The term is usually used to describe the foaming or fizzing that results from gas. In the lab a common example of effervescence is the addition of hydrochloric acid to a block of limestone. If a few pieces of marble or an antacid tablet are put in hydrochloric acid in a test tube fitted with a cork, effervescence of carbon dioxide can be witnessed.

2007-03-25 02:59:46 · answer #2 · answered by The exclamation mark 6 · 0 0

Efferversence is more of seen. As in efferversence can be seen as it is the fissing of the zinc strip when it comes in contact with the sulphuric acid.

2007-03-25 02:57:21 · answer #3 · answered by XxSyNd3rXx 2 · 0 0

if by that you mean...bubbles...yes

2007-03-25 02:57:12 · answer #4 · answered by Steph 5 · 0 0

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