Chemistry

What tarnishes pennies?

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2011-10-03 19:44:30
2011-10-03 19:44:30

Oxidation and corrosion tarnish pennies

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The copper metal it contains oxidizes or tarnishes the metal.


It is a chemical change. Jewelry that tarnishes undergoes oxidation.


Yes copper tarnishes !


pennies don't rust, they're made of cooper, rust is iron-oxide (meaning it has iron and oxygen in it). But copper oxidises (tarnishes). so a liquid with a high oxygen content would work


Lithium, Sodium and potassium are all soft metals which can be cut easily with a knife. This freshly cut piece is a shiny silver color which tarnishes quickly to a dull grey as these metals react with the oxygen and water in air. Sodium tarnishes quicker than Lithium and potassium tarnishes quicker than sodium. Thus, Potassium tarnishes quicker than lithium and not the other way around.


There are 100 Pennies in a Dollar. >> and 5 Pennies in a Nickel. >> and 10 Pennies in a Dime. >> and 25 Pennies in a Quarter. >> and 50 Pennies in a Half Dollar.


13 pennies. 2 nickels 3 pennies 1 dime 3 pennies 8 pennies 1 nickel 9 pennies 4 pennies 12 pennies 1 pennies



Pennies' is the plural possessive of pennies


pennies can be best used as such. How many pennies do you have?


There are 307,087.5 pennies in one ton of pennies



how many pounds in a roll of zinc pennies


Copper tarnishes because it just does. I know, not very helpful.


Calcium tarnishes rapidly when exposed to air.


Pure tin is shiny but it quickly tarnishes and dulls.


A penny does not rust, it tarnishes. But the penny will tarnish.


Rust colour! Answer Iron does not tarnish it will simply rust.


Each Line is a Different Way (11 Ways)100 Pennies & 0 Dimes90 Pennies & 1 Dimes80 Pennies & 2 Dimes70 Pennies & 3 Dimes60 Pennies & 4 Dimes50 Pennies & 5 Dimes40 Pennies & 6 Dimes30 Pennies & 7 Dimes20 Pennies & 8 Dimes10 Pennies & 9 Dimes0 Pennies & 10 Dimes


16 ounces (or 1 pound) of pennies would be a total of about 181 pennies.


About 181 pennies per pound.


$1.00 = 100 pennies $10.00 = 1000 pennies $100.00 = 10,000 pennies # of pennies divided by 100 = dollars 100,000,000 pennies divided by 100 = $1,000,000.00 (one million dollars)


3,000 pennies equal $300 This answer is incorrect - there are 30,000 pennies in $300 dollars. ($1 = 100 pennies | $10 = 3,000 pennies | $100 = 30,000 pennies)


No. Pennies are not flammable.


mostly made out of copper



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