Chemistry Power

1. What is the oxidizing reagent when iron rust? What is the decrease agent?
Oxygen and wet are the oxidizing agents when iron rusts.

2. Compounds that are easily oxidized great deal act as antioxidant to prevent other compounds from being oxidized. Vitamin A and E protect living cells from oxidative damage by acting as antioxidants. wherefore does adding lemon juice to product salad prevent browning of the fruit?
When plants are cut they waive a chemical called catechol and an enzyme called catechol oxidase. The enzyme converts catechol to benzoquinone 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, rendering it ineffective. thus no benzoquinone is produced and plants do not turn brown.
3. What component part does reducing agent hydroquinone play in the production of a photographic negative?

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 metal used to remove tarnish from silver?

9.



What chemical process 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 indigo, they dipped into a yellow solution of indigo and sodium hydrosulfide, which is good reducing agent. Within minutes after being taken come out of the solution, the jean turns blue. How can you explain this?

11. If ethanol were less volatile, how right-hand(a) the usefulness of a breathalyzer test be bear on? Explain?

12. Just before World 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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