Bases formed by alkali metals (Group IA) and alkaline earth metals (Group IIA, starting from Calcium). Examples: KOHcap K cap O cap H LiOHcap L i cap O cap H Insoluble: Most other metal hydroxides. Examples: 3. Chemical Properties Alkali (Soluble) Insoluble Bases Indicator Reaction Change color (e.g., Phenolphthalein turns pink) No color change Reaction with Acids Forms salt + water (Neutralization) Forms salt + water Thermal Decomposition Stable (except LiOHcap L i cap O cap H Decompose into Oxide + Water Reaction with Acid Oxides Forms salt + water Do not react 4. Safety and Application
Bases are primarily classified by their solubility in water: osnovaniia-konspekt uroka po khimii 8 klass
For detailed teaching materials, you can explore the lesson summary on InfoUrok or review interactive diagrams on YaKlass . You can also find video lessons at InternetUrok . Bases formed by alkali metals (Group IA) and
are complex substances consisting of a metal atom (or ammonium ion) bonded to one or more hydroxide groups ( −OHnegative cap O cap H General Formula: is a metal and is its valence. are complex substances consisting of a metal atom