Thursday, April 7, 2022. Day 6

Do Now:

Please copy today’s homework into your agenda.

Homework:

Complete the Key Concept Builder Worksheet handed out in class for tomorrow.

Today’s Lesson:

Chemical Reactions, Formulas, and Equations

  1. Define Chemical Reaction

  2. Signs of Chemical Change

    • Unexpected Color change

    • Energy Changes

      • temperature

      • light

        • not light bulbs -

        • lightstick

        • firefly

      • electricity

      • Battery

    • Precipitate Formation

      • solid produced out of a liquid solution

    • Gas Formation

      • not boiling -

      • new gas produced with different identity only

  3. Chemical Reactions all have

    • reactants

    • energy

    • exothermic

    • endothermic

    • products

  4. Chemical Equations