Questions and Answers
What is the formula and symbol of an ion with 16 protons and 18 electrons?
S2−
Identify calcium and chlorine as either a metal or a nonmetal.
How many valence electrons does calcium have?
2
How many valence electrons does chlorine have?
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What is the symbol and ionic charge of calcium?
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What is the symbol and ionic charge of chloride?
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What is the ionic formula for the compound formed with Ba2+ and Cl− ions?
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Select the correct formula for Na^+ and O^2−.
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Select the correct formula for Al^3+ and Cl−.
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Select the correct formula for Mg^2+ and N^3−.
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What is the name of CaO?
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What is the name of Al2S3?
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What is the name of MgCl2?
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What is the name of the ionic compound FeCl2?
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What is the name of the ionic compound MnO2?
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What is the formula for tin(II) chloride?
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What is the formula for nickel(II) sulfide?
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What is the formula for iron(III) oxide?
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What is the formula for aluminum bicarbonate?
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What is the formula for sodium phosphate?
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Select the correct formula for aluminum nitrate.
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Select the correct formula for tin(IV) hydroxide.
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What is the name of Ca(NO3)2?
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What is the name of SnSO4?
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What is the name of MgSO3?
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What is the name of MgSO4?
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What is the name of Pb3(PO3)2?
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What is the name of Fe2(SO4)3?
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What is the name of Ba3(PO3)2?
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What is the name of NiCO3?
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What is the formula for diphosphorus pentoxide?
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Study Notes
Sulfur Ion
- Sulfur has 16 protons and is represented by the symbol S.
- An ion of sulfur with 18 electrons has a charge of 2−, denoting it as the sulfide ion (S2−).
Calcium and Chlorine
- Calcium is a metal located in Group 2A with 2 valence electrons.
- Chlorine is a nonmetal in Group 7A with 7 valence electrons.
- Calcium loses 2 electrons to achieve an octet, while chlorine gains 1 electron.
- Resulting ions are Ca²⁺ (calcium ion) and Cl⁻ (chloride ion).
Ionic Compound Formation
- The ionic formula for the compound formed by Ba²⁺ and Cl⁻ is BaCl₂.
- Charges balance as 1(2+) + 2(1−) = 0.
Ionic Compounds from Cations and Anions
- Sodium and oxygen form sodium oxide (Na₂O) as 2Na⁺ and O²⁻ balance.
- Aluminum and chlorine yield aluminum chloride (AlCl₃) balancing 1Al³⁺ with 3Cl⁻.
- Magnesium and nitrogen create magnesium nitride (Mg₃N₂) balancing 3Mg²⁺ and 2N³⁻.
Naming Ionic Compounds
- CaO is named calcium oxide.
- Al₂S₃ is named aluminum sulfide.
- MgCl₂ is named magnesium chloride.
Ionic Compound Nomenclature
- FeCl₂ is known as iron(II) chloride.
- MnO₂ is referred to as manganese(IV) oxide.
Chemical Formulas
- Tin(II) chloride is represented as SnCl₂.
- Nickel(II) sulfide is denoted as NiS.
- Iron(III) oxide has the formula Fe₂O₃.
Bicarbonate and Phosphate Compounds
- Aluminum bicarbonate is written as Al(HCO₃)₃.
- Sodium phosphate is formulated as Na₃PO₄.
Complex Ionic Compounds
- Aluminum nitrate is correctly represented as Al(NO₃)₃.
- Tin(IV) hydroxide is represented by Sn(OH)₄.
Naming Complex Compounds
- Ca(NO₃)₂ is named calcium nitrate.
- SnSO₄ refers to tin(II) sulfate.
Additional Naming
- MgSO₃ is named magnesium sulfite.
- MgSO₄ is named magnesium sulfate.
- Pb₃(PO₃)₂ is referred to as lead(II) phosphite.
More Ionic Compound Names
- Fe₂(SO₄)₃ is known as iron(III) sulfate.
- Ba₃(PO₃)₂ is named barium phosphite.
- NiCO₃ refers to nickel(II) carbonate.
Molecular Compound Formula
- The formula for diphosphorus pentoxide is P₂O₅.
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Description
Test your knowledge on the concepts covered in Chapter 6 of Chemistry. This quiz includes questions about ionic charges, elements, and their properties. Use flashcards to enhance your learning experience and solidify your understanding of sulfur and calcium.
