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Anonymous

5y ago

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What types of reactions would be most useful in characterizing the alkali metals?

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Every time the Native Americans needed something, they would take sides with the country that had what they needed. When the Native Americans could no longer gain anything from the Europeans, they would take a countries side that benefited them best. They were successful in that they gained what they needed when they needed it.


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So-called "precious" metals are expensive for two reasons - 1, scarcity, and 2, utility. They're comparatively rare, and they're very useful. If they were rare, but nobody wanted or needed them, the real value would be far less - like a Kardashian. If they were very useful, but very plentiful, the value would be less as well, kinda like sand - which is silica which is used in glass, computer chips, etc etc.


What word means be of use?

A word that means, be of use would be; helpful, useful, needed


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Yes, you save all the energy that would have been needed to mine fresh ore from the ground and to extract the metal from that ore. The amount of energy needed to collect and sort the recycled metals is insignificant compared to this (especially for metals like aluminum that are very hard to extract from their ores).You only need to use the energy needed to melt the pure metal, which you would have needed anyway after extraction of new metal from fresh ore.


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a graph of the amount of native americans


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