Activity Number 301

	Overview and Learning Objectives
	Classroom Practice
	Central Concepts
	Benchmarks and Standards
	Extensions and Connections
	Activity Credits
	Requirements

Chemical Reactions and Stoichiometry (SAM)

Interactive, scaffolded model

Go To Activity

Follow the link above to start or download this activity.

This Activity Requires:

Java 1.5+ - Java 1.5+ is available for Windows, Linux, and Mac OS X 10.4 and greater. If you are using Mac OS X 10.3, you can download MW Version 1.3 and explore within it instead.

Test your system to see if it meets the requirements

Important! If you cannot launch anything from this database, please follow the step-by-step instructions on the software page.

Please Note: Many models are linked to directly from within the database. When an activity employs our scripting language, Pedagogica, as do some of the "guided" activities, the initial download may take several minutes. Subsequent activities will not take a long time. See this page for further instructions.

	Overview and Learning Objectives Students review basic chemical equations, what they represent, and how temperature and concentration affect reaction rates. Students will be able to: • Recognize that chemical reactions happen when bonds form and bonds break. • Analyze how concentration and temperature affect reaction rate. • Write a chemical reaction, balance the equation, and explain what is happening in words. • Define the limiting reactant in a chemical equation. • Classify chemical reactions as: synthesis, decomposition, or single displacement. return to top



	Classroom Practice Teacher's Guide: http://sam.concord.org/publications/teacher-guides/chemical_reactions.ver7.pdf return to top



	Central Concepts Key Concept: Additional Related Concepts Physics/Chemistry Bonds Breaking bonds Chemical reaction Collision Concentration Covalent bonds Reaction rate return to top



	Benchmarks and Standards NSES Physical-Science: Chemical Reactions - 1 Chemical reactions occur all around us, for example in health care, cooking, cosmetics, and automobiles (Full Text of Standard) return to top



	Extensions and Connections Fermi Lab's ARISE Project suggests the following enhancement to this SAM unit: http://www.concord.org/~barbara/SAM/ARISE/ARISE_SAM_chem_reactions.pdf return to top



	Activity Credits Created by CC Project: SAM using Molecular Workbench return to top



	Requirements Java 1.5+ - Java 1.5+ is available for Windows, Linux, and Mac OS X 10.4 and greater. If you are using Mac OS X 10.3, you can download MW Version 1.3 and explore within it instead. return to top

These materials are based upon work supported
by the National Science Foundation under grant numbers
9980620, ESI-0242701 and EIA-0219345

Any opinions, findings, and conclusions or recommendations expressed in this
material are those of the author(s) and do not necessarily reflect
the views of the National Science Foundation.

Chemical Reactions and Stoichiometry (SAM)

Overview and Learning Objectives

Classroom Practice

Central Concepts

Additional Related Concepts

Benchmarks and Standards

Extensions and Connections

Activity Credits

Requirements