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Questions and Answers
What is the chemical formula for Calcium Sulfide?
What is the chemical formula for Calcium Sulfide?
CaS
What is the chemical formula for Barium Nitride?
What is the chemical formula for Barium Nitride?
Ba3N2
What is the chemical formula for Magnesium Fluoride?
What is the chemical formula for Magnesium Fluoride?
MgF2
What is the chemical formula for Aluminum Arsenide?
What is the chemical formula for Aluminum Arsenide?
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What is the chemical formula for Potassium Selenide?
What is the chemical formula for Potassium Selenide?
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Study Notes
Calcium Sulfide
- Chemical formula: CaS
- Cation: Calcium (Ca) with a +2 charge
- Anion: Sulfur (S) with a -2 charge
- Charges "criss-crossed" to form: Ca2S2
- Simplified to CaS
Barium Nitride
- Chemical formula: Ba3N2
- Cation: Barium (Ba) with a +2 charge
- Anion: Nitrogen (N) with a -3 charge
- Charges "criss-crossed" to form: Ba3N2
- No simplification needed
Magnesium Fluoride
- Chemical formula: MgF2
- Cation: Magnesium (Mg) with a +2 charge
- Anion: Fluorine (F) with a -1 charge
- Charges "criss-crossed" to form: MgF2
- No simplification needed
Aluminum Arsenide
- Chemical formula: AlAs
- Cation: Aluminum (Al) with a +3 charge
- Anion: Arsenic (As) with a -3 charge
- Charges "criss-crossed" to form: Al3As3
- Simplified to AlAs
Potassium Selenide
- Chemical formula: K2Se
- Cation: Potassium (K) with a +1 charge
- Anion: Selenium (Se) with a -2 charge
- Charges "criss-crossed" to form: K2Se
- No simplification needed
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Description
Test your knowledge on writing chemical formulas for ionic compounds in Unit 5. This quiz covers the criss-cross method for combining cations and anions, including examples like Calcium Sulfide and Barium Nitride. Perfect for reinforcing your understanding of ionic bonding.
