QQuestionChemistry
QuestionChemistry
What is the correct name for the compound P^2 O^5?
A. diphosphorus pentoxide
B. phosphorus pentoxide
C. diphosphorus oxide
D. phosphorus oxide
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Answer
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Step 1:I'll solve this step by step:
Step 2:: Analyze the chemical formula
- The formula is $$P_{2}O_{5}
- This means the compound contains 2 phosphorus atoms and 5 oxygen atoms
Step 3:: Determine the naming convention for this type of compound
- This is a binary molecular compound (contains two non-metal elements) - For binary molecular compounds, we use prefixes to indicate the number of atoms
Step 4:: Apply the naming rules
- "Di-" prefix indicates 2 phosphorus atoms - "Penta-" prefix indicates 5 oxygen atoms - The element with the lower number of atoms (phosphorus) comes first - The element with the higher number of atoms (oxygen) comes second with "-ide" ending
Step 5:: Construct the full name
- Combining the prefixes and rules: "diphosphorus pentoxide"
Step 6:: Check the given options
- Option A matches our derived name exactly
Final Answer
Explanation: The systematic name follows the rules for naming binary molecular compounds, using numerical prefixes to indicate the number of atoms of each element.
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