Old Copper Culture: North America's Forgotten Metal Workers
28:10
YouTubeAncient Americas
Old Copper Culture: North America's Forgotten Metal Workers
The Keweenaw Peninsula furnished eastern North America with the highest quality copper for millennia. Find out how archaic peoples took advantage of the copper in their environment and how it shaped their culture. Patreon: https://www.patreon.com/ancientamericas Facebook: https://www.facebook.com/AncientAmericas Nathanael Fosaaen's Channel ...
1M viewsMay 12, 2021
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(e) Copper(II) oxide is formed when copper(II) nitrate, \mathrm... | Filo
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4. Copper(II) nitrate decomposes on heating according to the equation:2Cu(NO3)2(s) → 2CuO(s) 4NO2(g) O2(g)After decomposition of a sample of copper(II) nitrate, 7.04 g of black copper(II) oxide remains.a. Calculate the original mass, in g, of copper(II) nitrate decomposed. [1A, 1T]b. Calculate the mass, in g, of NO2 gas that would be evolved. [2A]c. If someone were to measure the mass of the gas evolved from the chemical reaction would they find itwere more, or less, than the answer from par
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