Heat in Reactions
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.
HS-PS1-4 Develop a model to illustrate that the release or absorption of energy from a chemical
reaction system depends upon the changes in total bond energy.
HS-PS3-4 Plan and conduct an investigation to provide evidence that the transfer of thermal
energy when two components of different temperature are combined within a closed
system results in a more uniform energy distribution among the components in the
system (second law of thermodynamics).