Question

1. A pure substance is ( )
in nature

2. The composition of a pure substance cannot be altered by any ( ) means



The bracket is the blanks​

Answer 1

a pure substance is constant in nature .

the composition of a pure substance can be alerted by any physical means .

Answer 2

Answer:

• A pure substance is homogeneous in nature

• The composition of a pure substance cannot be altered by any physical process