A student takes four samples of a silver, metallic solid and and subjects each piece to different treatment.
Piece 1: The solid is hammered into a flat sheet.
Piece 2: The solid is heated in a flame until it melts.
Piece 3: The solid fizzes when acid is dropped on the surface.
Piece 4: The solid is place in a beaker of water and it floats.
Which piece, when treated, indicates a chemical change?

Question

A student takes four samples of a silver, metallic solid and and subjects each piece to different treatment.
Piece 1: The solid is hammered into a flat sheet.
Piece 2: The solid is heated in a flame until it melts.
Piece 3: The solid fizzes when acid is dropped on the surface.
Piece 4: The solid is place in a beaker of water and it floats.
Which piece, when treated, indicates a chemical change?

anonymous · Answer

3. The rest are not chemical changes.

e.mccormick · Answer

This is not a social science question.