Question

① A substance is a system of matter in which bath
size and volume are uncertain, then what is called ​

Answer 1

Explanation:

Solid is the state in which matter maintains a fixed volume and shape; liquid is the state in which ... Chemical substances are often called 'pure' to set them apart from mixtures.

Answer 2

HERE U GO ,

THE ANSWER TO YOUR QUESTION IS GAS AS BOTH SIZE AND VOLUME ARE UNCERTAIN.

HOPE IT IS HELPFUL......☺☺