Question

question 7

what is the oxidation state of phosphorus in the polyatomic anion \\(\text{po}_3^{3-}\\)?

if the oxidation state is positive just give the number (e.g. enter 1 for +1)

if the oxidation state is negative give the negative number (e.g. enter -1 for -1)

if the oxidation state is zero, enter 0

Explanation:

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"concepts_used": [
"Oxidation State Rules",
"Oxidation Number Calculation"
],
"new_concepts": [],
"current_concepts": [
"Oxidation State Rules",
"Oxidation Number Calculation"
]
}
</pre_analysis>

<reasoning>

Set up the oxidation state equation

Using the Oxidation State Rules and Oxidation Number Calculation knowledge points
\[
\text{Let } x \text{ be the oxidation state of phosphorus (P) in } \text{PO}_3^{3-}.
\]
\[
x + 3(-2) = -3
\]

Solve for the oxidation state of phosphorus

Using the Oxidation Number Calculation knowledge point
\[
x - 6 = -3
\]
\[
x = +3
\]
</reasoning>

<answer>
What is the oxidation state of phosphorus in the polyatomic anion \(\text{PO}_3^{3-}\)?
If the oxidation state is positive just give the number (e.g. enter 1 for +1)
If the oxidation state is negative give the negative number (e.g. enter -1 for -1)
If the oxidation state is zero, enter 0

<blank>3</blank>
</answer>

<post_analysis>
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"subject": "Natural Science",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Natural Science",
"Chemistry",
"Oxidation Number Calculation"
]
}
</post_analysis>

Answer:

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"step_cot",
"blank_filling_formatter",
"explain_then_answer",
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],
"needs_drawing": false,
"concepts_used": [
"Oxidation State Rules",
"Oxidation Number Calculation"
],
"new_concepts": [],
"current_concepts": [
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"Oxidation Number Calculation"
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}
</pre_analysis>

<reasoning>

Set up the oxidation state equation

Using the Oxidation State Rules and Oxidation Number Calculation knowledge points
\[
\text{Let } x \text{ be the oxidation state of phosphorus (P) in } \text{PO}_3^{3-}.
\]
\[
x + 3(-2) = -3
\]

Solve for the oxidation state of phosphorus

Using the Oxidation Number Calculation knowledge point
\[
x - 6 = -3
\]
\[
x = +3
\]
</reasoning>

<answer>
What is the oxidation state of phosphorus in the polyatomic anion \(\text{PO}_3^{3-}\)?
If the oxidation state is positive just give the number (e.g. enter 1 for +1)
If the oxidation state is negative give the negative number (e.g. enter -1 for -1)
If the oxidation state is zero, enter 0

<blank>3</blank>
</answer>

<post_analysis>
{
"subject": "Natural Science",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Natural Science",
"Chemistry",
"Oxidation Number Calculation"
]
}
</post_analysis>