Which element is a metalloid?
a. argon (ar)
b. silicon (si)
c. potassium (k) <...
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Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?
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From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.
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Which of the following is a physical change? a.burning a piece of wood b.sawing a piece of wood in half c.rust forming on an iron fence d.a copper roof changing color from orange to green
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