Naming covalent compounds

Naming Compounds and Writing Formulas for Compounds

Intended Student Learning:

You will name covalent compounds and write formulas for covalent compounds

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Topic:

Naming Compounds and Writing Formulas for Compounds

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Teresa Legg TL

Teresa Legg TL

Met Gregory Bilinski GB

Now her name is Teresa Bilinski TB

Prefixes

What types of elements form covalent molecules?

H₂O NaSO₄ MgF₂

CO Br₂ H₂SO₄

Which of the following is NOT a covalent compound?(more than one possible)

Rules for Naming Covalent Compounds

H₂O

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CO₂

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SF₆

• The Element furthest left goes first
• If there is only one of the first element DO NOT use a prefix
• Use a prefix for the second element followed by -ide

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Rules for Naming Covalent Compounds

N₂O

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CO

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P₄O₁₀

4. If there is more than one of the first element use a prefix

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5. Always Use a prefix for the second element followed by –ide

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EXEPTION: double O

Carbon Monooxide WRONG

Carbon Monoxide Correct

Based on the rules name the following

7. C₆H₆ _______________

8. P₂I₄ ________________

9. P₂O₅ _______________

10. SF₆ _______________

11. N₂O₅ ______________

Use these guiding questions to assist you in noticing the naming patterns

Which element goes first?

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When are suffixes used?

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When are prefixes used?

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Creating Chemical Formulas

Dichlorine pentoxide

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Tetraphosphorous heptasulfide

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Rules

• Use the prefixes in the compounds name to determine how many of each element
• Use a subscript to show how many atoms there are

We do

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Arsenic Pentafluoride

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Diphosphorous Tetraiodide

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Selenium Hexabromide

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• What is the proper chemical name for a compound with one hydrogen atom and two oxygen atoms?
• Monohydrogen oxide
• Hydrogen monoxide
• hydrogen dioxide
• hydrogen oxygen

• Which chemical name represents the compound with the chemical formula NO₂
• Dinitrogen Oxide
• Nitrogen Tetroxide
• Nitrogen Dioxide

• What is the chemical name for a compound with two nitrogen atoms and three oxygen atoms?
• Dinitrogen trioxide
• Nitrogen trioxide
• Dinitrogenoxide
• None of the above

What is the chemical formula for the compound named iodine heptafluoride?

challenge questions