CHE 131 Lecture Notes - Lecture 9: Spectator Ion, Chemical Equation, Oxidation State

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CHE 131 Full Course Notes
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CHE 131 Full Course Notes
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Document Summary

Most reactions between acid and bases have the same net ionic equations (h2o) Ions that don"t participate in the reaction, can usually tell by the state of the element in a chemical equation. Precipitate: ions come together and form solute (not dissociated in solution) You can predict the formation of precipitates based on solubility rules. Can be written using net ionic equations. Know which one is soluble and insoluble (will form from water) Combining anions and cations not listed here will form precipitate. Know the rules - what forms precipitates and what don"t. Several reactions can have the same nets be determines how much ionic equation. Stay as ions in water and appear as ions, just mixing together. Balance mass and charges and oxidation number (shows charge in electrons) Oxidation is losing electrons, reduction is gaining. Oxidation states are indicated with plus or minus sign in front of the #. On of polyatomic ions is their charge.

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