Chalcopyrite (cufes2) is an abundant copper mineral that can be converted into elemental copper through the four step process below.
a) calculate the mass of cu in g from 5.40 kg cufes2.
i got 1.87e3g of cu.
b)calculate the mass of cufes2 needed in g to produce 150.0 g cu if the yield for the conversion process is 82%.

possibly, yes.

explanation:

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you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

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2b2t

explanation:

2b2t