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Science and Technology/Engineering > Grade High School > Chemistry
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Science and Technology/Engineering | Grade : High School

Discipline - Chemistry

Core Idea - Matter and Its Interactions

[HS.CHEM.1.4] - Develop a model to illustrate the energy transferred during an exothermic or endothermic chemical reaction based on the bond energy difference between bonds broken (absorption of energy) and bonds formed (release of energy). Clarification Statement: Examples of models may include molecular-level drawings and diagrams of reactions or graphs showing the relative energies of reactants and products. State Assessment Boundary: Calculations using Hess’s law are not expected in state assessment.

Resources:

Predecessor Standards:

  • 6.PS.1.6
    Plan and conduct an experiment involving exothermic and endothermic chemical reactions to measure and describe the release or absorption of thermal energy. Clarification Statements: Emphasis is on describing transfer of energy to and from the environment. Examples of chemical reactions could include dissolving ammonium chloride or calcium chloride.

Successor Standards:

No Successor Standards found.

Same Level Standards:

  • RCA-ST.9-10.7
    Translate quantitative or technical information expressed in words in a text into visual form (e.g., a table or chart) and translate information expressed visually or mathematically (e.g., in an equation) into words.
  • AI.N-Q.A.1
    Use units as a way to understand problems and to guide the solution of multi-step problems; choose and interpret units consistently in formulas; choose and interpret the scale and the origin in graphs and data displays.*
  • AI.N-Q.A.2
    Define appropriate quantities for the purpose of descriptive modeling.*
  • AI.N-Q.A.3
    Choose a level of accuracy appropriate to limitations on measurement when reporting quantities.*
  • HS.CHEM.3.4
    Provide evidence from informational text or available data to illustrate that the transfer of energy during a chemical reaction in a closed system involves changes in energy dispersal (enthalpy change) and heat content (entropy change) while assuming the overall energy in the system is conserved. State Assessment Boundary: Calculations involving Gibbs free energy are not expected in state assessment.