Chemical Reactions and Stoichiometry (10 Favorites)

SIMULATION in Balancing Equations, Stoichiometry, Classification of Reactions. Last updated May 7, 2018.


In this simulation, students will participate in a short quiz that challenges their knowledge of three related topics: classification of reaction types, balancing equations and solving stoichiometry problems.

Grade Level

High School


By the end of this simulation, students should be able to

  • Classify a reaction as either: synthesis, decomposition, single replacement, double replacement or combustion, based on its chemical equation.
  • Balance a chemical equation using whole number coefficients.
  • Use the appropriate mole ratio from a balanced equation to solve a stoichiometric problem.

Chemistry Topics

This simulation supports students’ understanding of

  • Chemical Reactions
  • Stoichiometry
  • Classification of Reactions
  • Balancing Equations


Teacher Preparation: minimal

Lesson: 20-30 minutes



No specific safety precautions need to be observed for this activity.

Teacher Notes

  • This simulation should be used after students have learned about types of chemical reactions, how to balance an equation and how to solve a stoichiometry problem. It would be beneficial for students to use this simulation as a review tool for a unit test or exam.
  • Each quiz is made up of 5 questions, each containing 3 parts. Each part of a question is worth 1 point, for a total of 15 possible points.
  • Each of the quiz questions will follow the same pattern: first classify the reaction type, then balance the equation, and finally solve a stoichiometry problem based on the balanced equation.
  • The order of 5 questions will be random, so students should not have the same order of questions as a peer.
  • There are 20 possible questions that could appear in the quiz, so students can complete the quiz multiple times without being presented with the same problem.
  • The types of chemical reactions presented in the quiz can be categorized as one of the following reaction types: synthesis, decomposition, single replacement, double replacement or combustion.
  • The conversions required in the stoichiometry problems in this quiz vary between questions.
  • There is no student handout associated with this simulation since the student will be given instructions, and will answer both multiple choice and free-response questions using the simulation interface.
  • The simulation can be found at either of the following links (note that students can access the simulation without an AACT login):
  • Download the teacher guide to access the complete answer key for this simulation.