Answer
Shiny gray zinc is a physical property
Cut zinc is a physical change
Blue copper chloride solution is a physical property
The solution becomes colorless and warm is a physical property
Zinc reduced in size is a chemical change
Brown granular material appears as a chemical change
Solution become warm is a chemical change
Work Step by Step
First, she discovered shiny gray zinc(Shiny gray color is Physical property)
Then, she cut zinc into smaller pieces (change in size is physical change)
Then, she poured blue copper chloride(the blue color is physical property)
The solution becomes colorless and warm(Change in color and temperature physical change)
The zinc pieces were visibly reduced in size(Zinc reacts with copper chloride to form zinc chloride is a chemical change)
Brown granular material appeared(copper is produced from the chemical reaction so the brown granular material appearance is a chemical change)
The solution becomes warm(The heat produced is due to the exothermic reaction of zinc with copper chloride so the warm bottom of the flask is from the chemical change)
