Question

Fill in the Venn Diagram below with similarities and differences between
pure substances and mixtures.
Homogeneous
Homogeneous/Heterogeneous
It has fixed boiling point
It has varying boiling point
It melts completely
Some portion seems to be not melting
Substance
Mixture​

Answer 1

*combunation of same type of atom is known as pure sunstance.

*combanation of different types of atom or molecules is known as mixture.

*homogenious is a soution of different atoms or molecules but they are not seen by our naked eyes. water,soda

*heterogenous is a solution in which molucles or atom seen by our naked eyes.eg lemon water , water with sand

*every substance have fixed boiling points.eg water 100 degre C.

Answer 2

Answer:

Substances :

1 it has fixed boiling points

2 it melts completely

3 homogeneous

Mixture :

1 it has varying boiling point

2 homogeneous/heterogeneous

3 some portion seems to be not melting