Physical Science Unit 3 Day 2 continued

Learning Objective: Students will learn about changes during chemical reactions and will interpret and analyze lab data in writing using technical vocabulary (law of conservation of mass, products, reactants).

Questions:

1. What are the reactants in a chemical reaction? (book--look it up!)

2. Why do we study chemical reactions? (brain--think about it) 3.  Which statements are true of the reaction below? 2K(s) + Br2(l) → 2KBr(s) Check all that apply.   A. K is a reactant. B. Br2 is a liquid. C. KBr is a reactant. D. It is a double-replacement reaction. Exit Ticket for Day 2: Summarize the lab we've been doing the last 2 class days. (2-3 sentences). Why did we do this lab? (explain)