Question

A student is comparing physical versus chemical changes using sugar cubes. Which part of the student's experiment illustrates a chemical change?

A
Melting a sugar cube using a hotplate

B
Burning a sugar cube in a flame

C
Dissolving a sugar cube in water

D
Crushing a sugar cube with a mortar and pestle

Answer 1

B) Burning a sugar cube in a flame.

Use of Flames are known to be part of a chemical property.

Crushing or Dissolving is a Physical property

Answer 2

It’s be because the sugar is burning