Order early for pre-holiday delivery. Flinn will be closed December 24th, 2025,
through January 4th, 2026, reopening Monday, January 5th, 2026.
Orders received after 10:30 AM Central Time on Tuesday, December 23rd, 2025,
will ship after we return.
PC2006
Price: $5.20
We live in a world of change, including complex chemical changes that may be hard to identify. With the What is a Chemical Reaction? Evidence of Change—ChemTopic™ Lab Activity, examine the chemical properties of hydrochloric acid and copper(II) chloride, identify the types of reactions that occur, and determine whether the law of conservation of mass applies to chemical reactions in a series.