Lead metal can be extracted from a mineral called galena, which contains 86.6% lead by mass. A particular ore contains 68.5% gal
ena by mass. If the lead can be extracted with 92.5 % efficiency, what mass of ore is required to make a lead sphere with a
6.50cm radius?
1 answer:
Answer:
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Step-by-step explanation:
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2n - 5 = 7
Add 5 to both sides.
-5 + 5 = 0
7 + 5 = 12
2n = 12
Divide both sides by 2.
2n / 2 = n
12 / 2 = 6
n = 6.
Your answer is 6.
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The answer is C! Hoped I help! Have a great day! Vyeeeeeu
500/6 which equals 416 and 4/6
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