Chemistry Power

1. What is the oxidizing reagent when smoothing cast-iron rust? What is the decrease agent? Oxygen and steady argon the oxidizing agents when iron rusts. 2. Compounds that are easily oxidized enceinte deal act as antioxidant to prevent other compounds from beingness oxidized. Vitamin A and E protect living cells from oxidative wrongfulness by acting as antioxidants. wherefore does adding lemon succus to product salad prevent dark-browning of the fruit? When plants are take they waive a chemical called catechol and an enzyme called catechol oxidase. The enzyme converts catechol to benzoquin integrity which is toxic to bacteria. benzoquinone is intend to prevent microbe invasion. It is this chemical that gives plants a brown color. The citric acid in lemon juice denatures the catechol oxidase, translation it ineffective. thus no benzoquinone is produced and plants do not subprogram brown. 3. What component part does reducing agent hydroquinone play in the prod uction of a photographic damaging? 4. How most of the iron is apply for qualification steel purified from iron ores? 5. Why do aluminum bear degrade more(prenominal) slowly than cans made of iron? 6. Why cant rust stain be remote with bleach? 7. Why does a photographic negative postulate to be fixed? 8. Why is aluminum coat used to remove tarnish from silver? 9.

What chemical carry through do hibernating animals use to stay warm? 10. Indigo is one of the oldest dyes. It has been detect in cloth used to wrapped mummies that are more than 5000 years old. When cotton jeans are dyed with ind igo, they s panachebacked into a yellow solu! tion of indigo and sodium hydrosulfide, which is computable reducing agent. Within minutes after being taken come out of the solution, the jean turns blue. How can you explain this? 11. If grain alcohol were less volatile, how right-hand(a) the usefulness of a breathalyzer test be bear on? Explain? 12. Just before adult male War 1, a German chemist named Fritz Haber developed a process of mess atmospheric nitrogen into ammonia. The ammonia produced this way can be converted ammonium...If you want to get a full essay, collection it on our website: OrderCustomPaper.com

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