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Bases

Bases. Base - is any substance that forms hydroxide ions OH- when dissolved in water. Reacts with H ions from acids. Donate or give up electronscommon bases -egg whites, baking powder, medicines: milk of magnesia and antacids, soap, cleaning materials, ammonia Bases- often crystalline solids

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Bases

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    1. Bases What are they? Naming, Writing formulas, Writing equations

    2. Bases Base - is any substance that forms hydroxide ions OH- when dissolved in water. Reacts with H+ ions from acids. Donate or give up electrons common bases -egg whites, baking powder, medicines: milk of magnesia and antacids, soap, cleaning materials, ammonia Bases- often crystalline solids, slippery, and bitter. corrosive and can result in severe burns

    3. Writing Ionization equations for bases Bases ionize in water, just as acids do. Since they form ions in water, they can conduct electricity. Write the formula for the base followed by (s) to indicate you start with a solid Water does not react- usually- so it is not included unless you are writing the reaction for ammonia The products will be the ions of the original base, followed by (aq) to indicate they are dissolved in water (don’t forget the charges of the ions)

    4. Examples of Ionization of bases KOH (s) ? K+ (aq) + OH- (aq) Ca(OH)2(s) ? Ca2+(aq) + 2OH- (aq) Remember to include the correct number of ions. On the reactant side, there were 2 hydroxide ions, so I must indicate that in my products.

    5. Naming bases and writing formulas Bases are just named as ionic compounds if they contain hydroxide ions. The formulas are obtained the same way as ionic formulas if they contain hydroxide ions. The main exception at this level is ammonia. NH3 It is covalent and is named as a covalent compound or as ammonia.

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