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19 & 18.3
chem
Question | Answer |
---|---|
acid dissociation constant | indicates the strength of the acid, the larger the stronger |
base dissociation constant | indicates the strength of the base, the larger the stronger |
buffer | a mix that is able to release or absorb H ions keeping the solution pH constant |
buffer capacity | the amount of acid or base a buffer can neutralize depends on the concentrations of the buffer component |
salt hydrolysis reaction | chem reaction bw water and ions of a dissolved salt |
weak acid+conjugate salt= | buffer |
oxidation | loss of electrons by a substance |
reduction | gain of electrons |
Redox Reactions | chem process of elements changing oxidation number |
oxidizing agent | causes the oxidation of another substance by accepting electrons |
reducing agent | causes the reduction of another substance by providing electrons |
oxidation # | a # assigned to an element in a molecule to show distributions of electrons |
disproportionation | a substance that undergoes oxidation and reduction |
which reaction never is redox? | double displacement |
which reaction is always redox? | single displacement and combustions |