A Method for Producing Pure Copper Metal Involves the Reaction

question 120

Multiple Choice

A method for producing pure copper metal involves the reaction of copper(I) sulfide with oxygen gas to give copper metal and sulfur dioxide. Suppose the yield of this reaction is 87%.What mass of a copper ore consisting of 46% copper(I) sulfide must be mined in order to produce 1.0 *10³ kg (1.0 metric ton) of copper metal?

• A)1.4 * 10³ kg
• B)3.2 * 10³ kg
• C)1.3 * 10³ kg
• D)1.5 * 10³ kg
• E)8.0 * 10³ kg

---

Definitions:

Bank Loans

Borrowed sums of money from banks that individuals or businesses must repay with interest according to agreed-upon terms.

Collateral

An asset that a borrower offers to a lender as security for a loan, which can be seized if the loan is not repaid.

Repayments

The action of paying back a loan or debt.

Capital Flight

The rapid movement of large sums of money or capital out of a country, typically to avoid economic instability or unfavorable investing conditions.