The accompanying activity also includes a “PhET Tips for Teachers” download with suggestion for using the simulation.Instructions for working through the simulation are included on the student activity sheet. It is suggested that students work individually, and at their own pace through this activity.No specific safety precautions need to be observed for this activity.Balancing Chemical Equations Simulation.This activity supports students’ understanding of: Translate between the written description of a chemical reaction and a symbolic representation.Recognize and explain the difference between coefficients and subscripts in a chemical equation.Understand that the number of atoms of each element is conserved in a chemical reaction.If you have an even number of a certain element on one side of the equation and an odd number of the same element on the other side of the equation, multiply both sides of the equation through by the coefficient of 2. Rule 4: Balancing chemical equations using the even/odd technique.
HS-PS1-7: Use mathematical representation to support the claim that atoms, and therefore mass, are conserved during a chemical reaction.īy the end of this activity, students should be able to: In this lesson, we will look at some examples of applying.
HS-PS1-2: Construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties.This simulation will help prepare your students to meet the performance expectations in the following standards:
In this activity, students will learn how to count atoms and how to balance chemical equations using a simulation and games from PhET Interactive Simulations.