Double+Replacement+II

Station 1 Definition Double replacement reaction is when two ionic compounds are put together, one of the cation’s replaces the anion and the anion replaces the cations .([|http://web.fccj.org])

Representive Equation is AB+CD yeilds AD+CB These are the Examples of Double Replacement The Equation that is being presented is Silver nitrate + sodium chloride yeilds silver chloride + Sodium nitrate  AgNO3 (aq) + KCl (aq) � ‑‑‑‑> � AgCl (s) + KNO3 (aq) The reactions that is shown, what is happening is that nitrate is replacing the chlorine and the chlorine is replacing nitrate, the next step is to balance ,in this case the equation is balanced The second example of Double replacement is shown below

NaCl(aq) + AgNO3(aq) ®  NaNO3(aq) + AgCl(s) The reaction that is shown is sodium chloride plus silver nitrate yeilds sodium nitrate plus silver chloride, the chlorine is being replaced by the nitrate and the nitrate is being replaced by the chlorine, this equation is balanced. These are the sources that I used for my examples and equation. [] [] [] Station 2 The human stomach produces hydrochloric acid, commonly known as "stomach acid." It is generated in the digestion process, but when a person eats something requiring the stomach to work overtime in digesting it—say, a pizza—the stomach may generate excess hydrochloric acid, and the result is "heartburn." When this happens, people often take antacids, which contain a base such as aluminum hydroxide (Al[OH]3) or magnesium hydroxide (Mg[OH]2).  Brushing teeth with the use of toothpaste, toothpaste is an alkaline substance that neutralizes the acid formed from the decomposing food you ate all day that happened to get stuck to your teeth.If it stays there for long, it will corrode through the tooth causing it to ache, that is the main reason why we have to brush our teeth everyday, to neutralize the acid. [] []

Station 3

station 4 media type="custom" key="3675239"

Station 5 Barium hydroxide + Sodium sulfate Barium Sulfate +Sodium Hydroxide Ba(OH)2 +NaSO4 BaSO4 + 2NaOH Double Replacement where two soluble salts make one an one new.