Question

A) write the name of chemical required to prepare hydrogen gas. B) why are rest and motion called relative trems? please help me

Answer 1

Answer:

.(a) Granulated Zinc and dil. Hydrochloric acid.

(b) Rest and motion are the relative terms because they depend on the observer's frame of reference. So if two different observers are not at rest with respect to each other, then they too get different results when they observe the motion or rest of a body.

Hope it's helpful uh ♡♡

Answer 2

Answer:

A) Granulated Zinc and dil. Hydrochloric acid.

The reaction involved for preparation of hydrogen gas is

Zn + 2HCl → ZnCl2 + H2

B)Rest and motion are the relative terms because they depend on the observer's frame of reference. So if two different observers are not at rest with respect to each other, then they too get different results when they observe the motion or rest of a body.

plz mark as brainliest...