Question

if a corn producer uses 5 - 15 - 5, which nutrient is most abundant in the fertilizer?
○ a phosphorous
○ b potassium
○ c calcium
○ d nitrogen
question 27 (2 points)
name the following compound: fecl₃
○ a iron chlorate
○ b iron iii chlorate
○ c iron chloride
○ d iron iii chloride

Explanation:

• For the first question: In a fertilizer ratio like 5 - 15 - 5, the numbers represent nitrogen - phosphorus - potassium (N - P - K) percentages. The middle number (15) is for phosphorus, which is the highest among 5, 15, and 5.
• For the second question: In \(FeCl_3\), iron (\(Fe\)) has a + 3 oxidation state (since each \(Cl\) has a - 1 charge and there are 3 \(Cl\) atoms). The compound is named iron(III) chloride. Chlorate is \(ClO_3^-\), which is not present in \(FeCl_3\).

Answer:

• First question: a. Phosphorous
• Second question: d. iron(III) chloride