Question

Define catalyst. How are my drawings by the way :) ? The first and the last one are related to BTS (serendipity and run). ​

Answer 1

Answer:

A catalyst is a substance used to speed up the chemical reaction. Example Nickel and paladium.

Answer 2

Answer:

In physics,

catalyst is something by which the rate of reaction is increased.

Explanation:

N the paintings you hv made are Awesome

i loved those stars and layers of night sky

i can sketch but whenever i use brush, i dunno what it becomes :P