HS-PS1-12: Transfer of Electrons

Use evidence to illustrate that some chemical reactions involve the transfer of electrons as an energy conversion occurs within a system.

Clarification Statement: Evidence could include half-reactions, net ionic equations, and electrochemical cells to illustrate the mechanism of electron transfer.

Assessment Boundary: Assessment is limited to completing and/or balancing oxidation and reduction half-reactions. Energy conversions are limited to qualitative statements

Evidence Statement

Chemical reactions
Oxidation
Reduction
Energy and Matter
Energy conversion
Electron transfer
System
Evidence (e.g. half-reactions, net ionic equations, and electrochemical cells)

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