CHEM.SCI.9.A

Interpret, write, and balance chemical equations, including synthesis, decomposition, single replacement, double replacement, and combustion reactions using the law of conservation of mass.

Chemistry · Texas Essential Knowledge and Skills (TEKS) · TEKS 2022

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Vocabulary
chemical equationssynthesis reactionsdecomposition reactionssingle replacement reactionsdouble replacement reactionscombustion reactionslaw of conservation of mass
Skills
  • interpret (chemical equations) #dok2
  • write (chemical equations for different types of reactions) #dok2
  • balance (chemical equations) #dok2
  • classify (types of chemical reactions) #dok2
  • apply (law of conservation of mass to chemical equations) #dok3
Learning Targets
  • I can identify and describe the major types of chemical reactions such as synthesis, decomposition, single replacement, double replacement, and combustion. #dok1
  • I can interpret the meaning of a chemical equation including symbols, formulas, and reaction conditions. #dok2
  • I can write chemical equations to represent various types of reactions. #dok2
  • I can balance chemical equations to reflect the law of conservation of mass. #dok2
  • I can apply the law of conservation of mass to explain why chemical equations must be balanced. #dok3
  • I can analyze a reaction to determine its type and justify the classification. #dok3
Big Ideas
  • The law of conservation of mass governs all chemical reactions and is demonstrated through balanced chemical equations.
  • Understanding and writing balanced chemical equations is essential for predicting the products and outcomes of chemical reactions.
Essential Questions
  • Why must chemical equations be balanced in accordance with the law of conservation of mass?
  • How can you identify the type of reaction by analyzing a chemical equation?
  • What are the steps to writing and balancing chemical equations for different reaction types?
  • How does balancing chemical equations demonstrate the conservation of matter during chemical reactions?
  • What information do you gain from interpreting and writing various types of chemical equations?