It looks like you've uploaded an image containing a table with a list of chemical compounds and their corresponding formulas, but the actual image content isn't visible in this interface. However, based on your description, it seems like the task involves identifying or matching chemical compounds with their correct formulas.
Since I can't view the image directly, I’ll guide you through how to solve such problems typically:
Common Task Type:
This appears to be a
matching exercise where you are given:
- A list of chemical compound names (e.g., sodium chloride, water, carbon dioxide)
- A column for writing the correct chemical formula
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Steps to Solve:
1.
Identify the elements involved in each compound.
2.
Recall the valency or common ions (e.g., Na⁺, Cl⁻, Ca²⁺, O²⁻).
3.
Balance the charges to form a neutral compound.
4.
Write the formula using subscripts.
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Example:
Let’s say one row says:
"Sodium chloride"
- Sodium (Na) forms Na⁺
- Chloride (Cl) forms Cl⁻
- One Na⁺ balances one Cl⁻ → Formula:
NaCl
Another example:
"Calcium oxide"
- Calcium (Ca²⁺), Oxygen (O²⁻)
- Charges balance 1:1 →
CaO
"Ammonium nitrate"
- Ammonium ion: NH₄⁺
- Nitrate ion: NO₃⁻
- Combine:
NH₄NO₃
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Tips:
- Memorize common polyatomic ions:
- NO₃⁻ (nitrate), SO₄²⁻ (sulfate), CO₃²⁻ (carbonate), NH₄⁺ (ammonium), OH⁻ (hydroxide), etc.
- Use prefixes (mono-, di-, tri-) for covalent compounds (e.g., CO₂ = carbon dioxide).
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If you can describe the specific compounds listed in the table or provide the text from the image, I can help fill in the correct formulas and explain each one.
Alternatively, if you’re able to paste the text here, I can solve it step by step!
Parent Tip: Review the logic above to help your child master the concept of nomenclature worksheet 3 ionic compounds containing polyatomic ions.
