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Mid 1982

But the new cents are 97.5% zinc, not 95%

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16y ago
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Q: When did pennies change from 95 percent copper to only five percent?
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How much does 100 dollars in pennies weigh?

If it's dated 1864 to 1909 or from 1959 to mid 1982, then it'd be 31100 grams. But beyond that, it depends on the date. Pennies in the United States began minting in 1787, and then were made of solid copper. The Indian Head penny, the coin to follow, was minted from 1859 to 1864 and varied in content of copper from one hundred percent to eighty-eight percent (the additional metal in the coin was zinc). Based on that variance, pennies from the 1800s can be distinguished by weight. Ninety five percent copper pennies weighed 3.1 grams, but the eighty-eight percent copper pennies weighed 4.67 grams. There is some debate as to the make up of the Indian Heads, and whether or not the print on the coin changed before the metals changed, but the history there gets blurry. Later, during the Second World War, pennies were all made of steel and coated in zinc because the copper was being dedicated to war use. These pennies only weighed 2.7 grams. Modern pennies though, which were introduced with the Lincoln Memorial on the back in 1959, weigh 2.5 grams. Although, pennies produced before 1982 actually weigh 3.1 grams. That being said, one hundred dollars in post 1982 pennies weighs 25,000 grams, or 25 kilograms. I got that by multiplying 100 pennies per dollar by 100 dollars, getting 10,00 and multiplying that by 2.5. 1000 grams is a kilogram, giving me 25 kilograms.


What is the solute in a brass alloy containing seventy-five percent copper and twenty-five percent zinc?

the solute is zinc because it is smaller in quantity


What are the change combinations to make twenty cents?

Twenty pennies Fifteen pennies, one nickel Ten pennies, two nickels Ten pennies, one dime Four nickles Three nickels, five pennies Two nickles, one dime Two dimes One dime, one nickel, five pennies


When was The Five Pennies created?

The Five Pennies was created in 1959.


How do you make change for 55 cents using 15 coins?

Ten nickels, five pennies


What actors and actresses appeared in Red Nichols and His Five Pennies - 1929?

The cast of Red Nichols and His Five Pennies - 1929 includes: The Five Pennies as Themselves


How do you make exact change for 55 cents using 6 coins?

A half dollar and five pennies


How do you make change for 55 cents using 12 coins?

Three dimes, four nickels, five pennies


Where are nickels made?

Nickels are made in the United States Mint. Seventy-five percent of the nickel is copper and twenty-five is made of actual nickel.


What are the different ways to make fifteen cents?

Fifteen pennies, ten pennies and a nickel, five pennies and two nickels, five pennies and a dime, three nickels, one nickels and a dime


How much pennies are in one nickel?

Five pennies to one nickel.


Is a three year old likely to see five pennies or a nickel as more money?

five pennies, because they usually think that since five is more than one, the pennies are worth more