Question

what is the difference between hard and soft objects? Give one example each.​

Answer 1

Explanation:

Ordinarily, a soft object is significantly deformed when it collides with something, or is struck/hit. A hard object is insignificantly deformed when it collides with something or is struck/hit.

As for chemical usage, you have to know what a Lewis acid and a Lewis base are. A Lewis acid has a hole in its electron density in which an electron pair can fit, and a Lewis base supplies an electron pair to fit into that hole. Now, electron pairs fit into regions of space which are called orbitals (that’s the best way I can describe orbitals to a layperson). In a soft Lewis base, the orbital is diffuse and easily deformable, whereas in a hard Lewis base the orbital is compact and difficult to deform. Similarly, the empty orbital (which I called a “hole” earlier) in the Lewis acid can be diffuse and easily deformable (soft) or compact and difficult to deform (hard).

Then of course there’s hard water which has a relatively large amount of doubly-charged positive ions (mostly Mg++ and Ca++, i.e. magnesium and calcium). Soft water has a low amount of these doubly-charged positive ions. Water softeners exchange the doubly-charged ions for singly-charged ions like Na+, i.e. sodium.

I hope that was simple enough—it wasn’t exactly short, but I had to define each term three times

Answer 2

Explanation:

The object that can be rasily cut or bend are called as hard object. The object that can be easily cut or bend are called as soft object.

hard object example-stone soft object example-cotton