Question

Take two zn piece of equal mass in two test tube. Add 10 ml concentrate Hcl in the first test tube and 10 ml. dilute Hcl to the second test tube

a. In which test tube the rate of reaction greater

b. write the chemical equation

c. Given reason
Answer by all question and methods ​

Answer 1

Answer:

a) First test tube

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

c) explanation for a)

With a higher concentration, more hydrogen ions are near the zinc atoms at any given time. This allows more zinc atoms per second to be ionized (reducing the hydrogen in the process) anddissolve into the solution.

explanation for b)

Zinc is more reactive than hydrogen, therefore zinc replaces hydrogen from HCl to form Zinc chloride and hydrogen gas is evolved.