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Newt 3 year s ago
#6 No, the green colour is copper carbonate
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Christiana 3 year s ago
Newt, Yes but it is still Oxidization! The copper metal reacts with oxygen, resulting in the formation of an outer layer of copper oxide, which appears green or bluish-green in color. This layer is known as the patina.
The green coating is a mixture of carbon carbonate and carbon hydroxide
The green coating is a mixture of carbon carbonate and carbon hydroxide
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Harty 3 year s ago
fantastic !
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Zolly 3 year s ago
#14 Paper is organic. Sure, it's "edible" but that doesn't mean you should eat it...
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Dosie 3 year s ago
#16 : too crazy to be true, but enough to be false. :)
Eiffel tower was made for the 1889 Universal Exposition of Paris, and never intended to be anywhere else.
Eiffel tower was made for the 1889 Universal Exposition of Paris, and never intended to be anywhere else.
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Julia 3 year s ago
#1 Technically true. Eminem was 1 yr old when Picasso passed away. And Picasso was 1 yr old when Darwin passed away. Can be done with a lot of combinations.
Winston Churchill was alive at the same time as Andrew Johnson and Keanu Reeves
Winston Churchill was alive at the same time as Andrew Johnson and Keanu Reeves
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Alberta 3 year s ago
#13 Then rejected as too big a word for Facebook users.
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Elnora 3 year s ago
#4 2 at he power 52, respectively #15 2 power 64
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Stu 3 year s ago
Elnora, you are wrong and you should google that again.
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Theodora 3 year s ago
Stu, I did, you're right, it's factorial instead of "power": 52! and 64!
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Eudicy 3 year s ago
Eiffel tower in Spain? Come on!!
The green coating is a mixture of carbon carbonate and carbon hydroxide
Eiffel tower was made for the 1889 Universal Exposition of Paris, and never intended to be anywhere else.
Winston Churchill was alive at the same time as Andrew Johnson and Keanu Reeves