Answer: |
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The first word is a prefix plus a complete element name . Here there is only one atom of "I" so no prefix is needed. |
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iodine |
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The second word is a prefix plus the stem of the element name plus the ending -ide. Here the prefix is "hepta-". |
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heptafluoride |
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The complete name is |
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iodine heptafluoride |