Questions and Answers
What name should be used for the ionic compound Ga2(SO4)3?
gallium(III) sulfate
What is the chemical formula for ammonium sulfate?
(NH4)2SO4
When is a roman numeral most likely needed in the name of an ionic compound?
when the cation is a transition metal
What is the chemical formula for ammonium carbonate?
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What is the name of the ionic compound AlBr3?
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What is the chemical formula for nickel (III) oxide?
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What is the name of the ionic compound Cs2S?
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What is the chemical formula of a compound that is composed of the ions Ca^2+ and Br^-?
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How many ions that have a +1 charge will bond with an ion that has a -2 charge?
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What is the ratio of Sr^2+ ions to Br^- ions in a neutral compound?
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What name should be used for the ionic compound Cu(NO3)2?
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What is the ratio of ions needed to produce neutral potassium chloride?
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How does the periodic table help in predicting the formula of a stable ionic compound?
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What name should be used for the ionic compound LiI?
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Study Notes
Ionic Compounds Nomenclature and Formulas
- Ga2(SO4)3 is known as gallium(III) sulfate, indicating the oxidation state of gallium.
- Ammonium sulfate has the chemical formula (NH4)2SO4, showcasing the ammonium ion's presence.
- Roman numerals are required in the names of ionic compounds when the cation is a transition metal, indicating its charge.
- Ammonium carbonate's chemical formula is (NH4)2CO3, highlighting its ammonium ion composition.
- AlBr3 is called aluminum bromide, which illustrates aluminum's +3 charge balancing with bromide's -1 charge.
- Nickel (III) oxide has the chemical formula Ni2O3, reflecting nickel's +3 charge in the compound.
- Cs2S is referred to as cesium sulfide, with cesium contributing a +1 charge and sulfide a -2 charge.
- The compound consisting of Ca^2+ and Br^- ions has the formula CaBr2, indicating calcium's +2 charge balanced by two bromide ions.
- To neutralize an ion with a -2 charge, two ions with a +1 charge are needed, demonstrating charge balancing.
- The ratio of Sr^2+ ions to Br^- ions in a neutral compound is 1:2, necessary for electrical neutrality.
- Cu(NO3)2 is named copper(II) nitrate, reflecting copper's +2 oxidation state in the ionic compound.
- One potassium ion bonds with one chloride ion to create neutral potassium chloride, which follows the +1 and -1 charge balance.
- The periodic table predicts stable ionic compound formulas, as metals in Group 2 consistently form cations with a +2 charge.
- LiI is known as lithium iodide, which highlights the direct bond between lithium’s +1 charge and iodine’s -1 charge.
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Description
Test your knowledge of the nomenclature of ionic compounds with this quiz. You'll be asked to name various compounds, identify their chemical formulas, and understand when to use Roman numerals in names. Perfect for chemistry students looking to reinforce their learning.
