Question

For each statement, answer with YES if evidence of a chemical reaction is present. Answer NO if there is no evidence of a chemical reaction. A drinking glass breaks into smaller pieces?

1) YES
2) NO

Answer 1

A drinking glass breaking does not involve a chemical reaction but is a physical change, lacking the characteristic signs like color change, gas production, precipitate formation, or energy transfer.

Step-by-step explanation:

When evaluating whether a drinking glass breaking into smaller pieces is evidence of a chemical reaction, the answer is NO. Breaking a glass is a physical change as there is no change in the chemical composition or identity of the glass. A chemical reaction, as stated in the lesson, tends to involve a change of color, production of gas, formation of a precipitate, or a transfer of energy, none of which occurs when a glass simply breaks.