Names & Chemical Formulas Of Select Multivalent Elements And Polyatomic Ions

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    What is the formula of carbonate?

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About This Quiz

Naming the valences, classical name, and IUPAC name of the elements iron, copper, tin, lead, mercury, and hydrogen.
Naming the formula for the polyatomic ions sulfate, carbonate, nitrate, chlorate, phosphate, hydroxide, and ammonium.

Names & Chemical Formulas Of Select Multivalent Elements And Polyatomic Ions - Quiz

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  • 2. 

    What is the chemical formula of sulfate?

    Explanation
    The chemical formula of sulfate is SO4 2-. This is because sulfate ion consists of one sulfur atom bonded to four oxygen atoms, with a charge of 2-. The formula indicates that there are four oxygen atoms surrounding the central sulfur atom, and the 2- charge indicates that the sulfate ion has gained two electrons, resulting in a negative charge.

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  • 3. 

    What is the formula of hydroxide?

    Explanation
    The formula of hydroxide is OH 1-. This is because hydroxide is a polyatomic ion consisting of one oxygen atom and one hydrogen atom. The charge of hydroxide is -1, indicated by the superscript 1-. The formula OH represents this combination of atoms and charge, making it the correct answer.

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  • 4. 

    Name the valences of tin, as well as their respective classical names.

    Explanation
    The valences of tin are 2+ and 4+. The classical names for these valences are stannous and stannic respectively.

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  • 5. 

    What is the formula of nitrate?

    Explanation
    The formula of nitrate is NO3 1-. This is because nitrate is a polyatomic ion composed of one nitrogen atom (N) and three oxygen atoms (O). The 1- superscript indicates that the nitrate ion has a charge of -1, meaning it has gained one electron.

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  • 6. 

    Name the valences of iron, as well as their respective classical names.

    Explanation
    The valences of iron are 2+ and 3+. These valences are known by their classical names, which are ferrous and ferric respectively.

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  • 7. 

    What is the formula of chlorate?

    Explanation
    The formula of chlorate is ClO3 1-. This is because chlorate is an ion that consists of one chlorine atom (Cl) and three oxygen atoms (O), with a charge of -1. The subscript 1 indicates that there is only one chlorate ion present.

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  • 8. 

    What is the formula of phosphate?

    Explanation
    The formula for phosphate is PO4 3-. Phosphate is an ion that consists of one phosphorus atom bonded to four oxygen atoms. The 3- charge indicates that the ion has a net charge of -3, which means it has gained three electrons to achieve stability. This formula is commonly used to represent the phosphate ion in chemical equations and reactions.

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  • 9. 

    What is the formula of ammonium?

    Explanation
    The formula for ammonium is NH4 1+. This is because ammonium is a positively charged ion consisting of one nitrogen atom bonded to four hydrogen atoms. The +1 charge indicates that the ion has lost one electron and has a net positive charge.

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  • 10. 

    Name the valences of lead, as well as their respective classical names.

    Explanation
    The valences of lead are 2+ and 4+. The classical names for these valences are plumbous for 2+ and plumbic for 4+.

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  • 11. 

    Name the valences of mercury, as well as their respective classical names.

    Explanation
    Mercury can exhibit two different valences, 1+ and 2+. When it has a valence of 1+, it is referred to as mercurous. When it has a valence of 2+, it is called mercuric. These classical names are used to distinguish between the different oxidation states of mercury in chemical compounds.

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  • 12. 

    Name the valences of hydrogen, as well as their respective classical names and IUPAC names.

    Explanation
    The valences of hydrogen are 1+ and 1-. The classical name for hydrogen with a valence of 1+ is hydrogen, and its IUPAC name is also hydrogen. The classical name for hydrogen with a valence of 1- is hydride, and its IUPAC name is also hydride.

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  • 13. 

    Name the valences of copper, as well as their respective classical names.

    Explanation
    Copper can exhibit two different valences: 1+ and 2+. When copper has a valence of 1+, it is referred to as cuprous. When copper has a valence of 2+, it is referred to as cupric.

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