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What are the corrosive effects of ammonia on aluminum or bronze?
Ammonia can corrode aluminum by forming an aluminum ammine complex that can weaken the metal. It can also cause stress corrosion cracking in aluminum. On bronze, ammonia can tarnish the surface and cause pitting corrosion by attacking the copper content in the alloy.
What is the chemical reaction that occurs when cleaning silver with baking soda, aluminum foil, and hot water?
When cleaning silver with baking soda, aluminum foil, and hot water, a chemical reaction called a redox reaction occurs. The aluminum foil acts as a reducing agent, causing the tarnish on the silver to transfer to the aluminum. This reaction results in the silver becoming clean and shiny.
How can I tell the difference between aluminum and pewter?
Aluminum is lighter in weight, has a higher shine, and does not tarnish like pewter. Pewter is darker in color, has a slightly duller appearance, and may develop a patina over time. A magnet can also help differentiate them, as aluminum is not magnetic while pewter may show some magnetic attraction due to its composition.
What are synonyms for tarnish?
Some synonyms for tarnish include stain, blemish, and dull.
Why is sorrel able to clean an aluminum pot?
Sorrel contains oxalic acid, which can help remove tarnish and surface stains from aluminum pots. When mixed with water and applied to the pot, the oxalic acid in sorrel can break down and loosen the dirt and grime, making it easier to clean.
Why is aluminum metal used to be remove tarnish from silver?
Aluminum metal is used to remove tarnish from silver due to a chemical reaction known as the "aluminum-silver" reaction. When aluminum is placed in contact with tarnished silver in the presence of an electrolyte, such as baking soda and water, the aluminum reduces silver sulfide (the tarnish) back to silver while itself being oxidized. This process effectively cleans the silver without damaging it, making aluminum a convenient and effective choice for tarnish removal.
Will lemon juice tarnish aluminum?
Yes, lemon juice can tarnish aluminum due to its acidic nature. The citric acid in lemon juice can react with the aluminum surface, leading to oxidation and potential discoloration. It's best to avoid using lemon juice on aluminum items to prevent damage and preserve their appearance.
Is rust the same as tarnish?
Yes, both are forms of oxidation. but rust can penetrate through an entire stell part. tarnish is typically a surface only form of oxidation. Metals like silver are commonly thought to tarnish, but metals such as aluminum also "tarnish", forming an oxide layer almost instantly after fresh metal is exposed.
Why should you not clean the tarnish aluminum objects that are going to be used outdoors?
The oxide coating is quickly formed again.
Why should you not clean the tarnish from aluminum objects that are going to be used outdoors?
Cleaning the tarnish from aluminum objects intended for outdoor use can remove the natural oxide layer that protects the metal from corrosion. This protective layer helps prevent further tarnishing and deterioration when exposed to moisture and environmental elements. Removing it may lead to increased susceptibility to rust and degradation, ultimately reducing the lifespan of the aluminum item. Therefore, it's often better to leave the tarnish intact for outdoor applications.
What are the corrosive effects of ammonia on aluminum or bronze?
Ammonia can corrode aluminum by forming an aluminum ammine complex that can weaken the metal. It can also cause stress corrosion cracking in aluminum. On bronze, ammonia can tarnish the surface and cause pitting corrosion by attacking the copper content in the alloy.
Do pennies tarnish or rust?
Tarnish.
What is the chemical reaction that occurs when cleaning silver with baking soda, aluminum foil, and hot water?
When cleaning silver with baking soda, aluminum foil, and hot water, a chemical reaction called a redox reaction occurs. The aluminum foil acts as a reducing agent, causing the tarnish on the silver to transfer to the aluminum. This reaction results in the silver becoming clean and shiny.
Which apparatus is a good conductor of electricity?
Copper is the most widely used conductor. Silver is also good except that the tarnish (oxidation) acts as an insulator. Gold does not tarnish but is too expensive; so, it is used in plating to prevent tarnishing to maintain excellent conductivity. Aluminum is nearly as conductive as copper.
Is gallium shiny?
Yes, gallium has a shiny appearance similar to shiny metals like aluminum. However, its shiny surface can tarnish quickly when exposed to air.
Do gold coins change or tarnish?
No, gold does not tarnish.
What will happen if you rub ketchup on a tarnish penny and wash it off with water?
i think the tarnish will come of the tarnish penny
