Which of these combinations will result in a reaction? Check all that apply. A. K(s) + Au^3+(aq) B. K^+(aq) + Au(s)

Q: Which of these combinations will result in a reaction? Check all that apply. A. K(s) + Au³+(aq) B. K^+(aq) + Au(s)

Answer: A. K(s) + Au^(3+)(aq) Explanation: A reaction will occur if there is a favorable redox process. In option A, solid potassium (K) is a very strong reducing agent and can easily donate electrons to reduce gold ions ( Au^(3+) ) to solid gold (Au). This is a spontaneous redox reaction. In option B, potassium ions ( K^+ ) are already oxidized and cannot further donate electrons to reduce solid gold (Au). Therefore, no reaction will occur in this case.

Answer: A. $\text{K(s) + Au}^{3+}(aq)$

Explanation:

A reaction will occur if there is a favorable redox process. In option A, solid potassium (K) is a very strong reducing agent and can easily donate electrons to reduce gold ions ( $\text{Au}^{3+}$ ) to solid gold (Au). This is a spontaneous redox reaction.

In option B, potassium ions ( $\text{K}^+$ ) are already oxidized and cannot further donate electrons to reduce solid gold (Au). Therefore, no reaction will occur in this case.

the allele for black noses in wolves is dominant over the allele fro the brown noses. There is no known selective advantage for one nose colour over another in wolves. If this remains true, which of the following statements is most liklely TRUE about the change in wolf nose colours re over many generations? Black noses will become more common than they are now black noses will stay about the same frequency as now black noses will become less common than they are now brown noses wil disappear after enough generations pass

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Inventory records for Dunbar Incorporated revealed the following: Date Transaction Number of Units Unit Cost Apr. 1 Beginning inventory 520 $2.38 Apr. 20 Purchase 320 $2.73 Dunbar sold 620 units of inventory during the month. What is the ending inventory assuming weighted-average cost? (Round weighted-average unit cost to 4 decimal places and final answer to the nearest dollar amount.) Multiple Choice: a. $521 b. $633 c. $562

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