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TAKE THE QUIZrubeanic acid
noun
ru·be·an·ic acid
ˌrü-bē-ˌan-ik-
: an intensely colored weak acid (CSNH2)2 that is used as a reagent for copper, cobalt, and nickel
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Merriam-Webster unabridged
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- Often used to describe “the march of time,” what does inexorable mean?


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