chemical changes
Bonds break, form
Chemical changes are transformations that alter the molecular structure of a substance, producing new substances with different properties.
Unlike physical changes, chemical changes cannot easily be reversed: burning wood produces ash and gas, rusting converts iron to iron oxide, cooking an egg denatures its proteins permanently.
The chemical changes during digestion break food into nutrients the body can absorb.
- rancidityDecomposition of fats
- food spoilageDeterioration rendering meals inedible
- reactionResponse to stimulus
- oxidationLosing electrons chemically
- rustingMetal oxidation process
rust bucket · fermentation · baking soda · heat · combustion · photodegradation · burn · rearrangement · mineralization · neutralization · pH level · electrolysis · battery acid · tarnishing · caramelization · smoke · synthesis · decomposition
chemical changeschemical stability
Resistance to molecular change
inertness · no reaction · stasis · chemical equilibrium · unreactivity
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