Science & STEM

Naming Compounds Quiz: Practice Names and Formulas

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This naming compounds quiz helps you practice naming compounds and writing correct chemical formulas, including tricky ions like NaIO2. Get instant feedback as you check your steps, then build skills with ionic formula practice, a chemical nomenclature quiz, or focused acid naming practice. Start now and see where to review before your next test.

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1What is the chemical name of NaCl?
2What is the formula for potassium oxide?
3What is the chemical name of CO2?
4What is the formula for aluminum sulfide?
5What is the chemical name of H2O?
6What is the formula for magnesium bromide?
7What is the chemical name of NH3?
8What is the formula for sodium phosphate?
9What is the chemical name of FeCl3?
10What is the formula for dinitrogen tetroxide?
11What is the chemical name of Li3N?
12What is the formula for calcium carbonate?
13What is the name of K2Cr2O7?
14What is the formula for copper(II) sulfate pentahydrate?
15What is the name of P4O10?
16What is the chemical name of NaIO2?
17What is the formula for barium hydroxide?
18What is the name of HCl when dissolved in water?
19What is the formula for ammonium sulfate?
20What is the name of SeO2?
21What is the formula for iron(II) phosphate?
22What is the name of ClO4??
23What is the formula for zinc phosphate?
24What is the name of MnO4??
25What is the systematic name of SnCl2?
26What is the formula for mercury(I) nitrate?
27What is the name of Cr2O3?
28What is the formula for phosphorous acid?
29What is the name of K2S2O3?
30What is the formula for cobalt(III) oxide?
31What is the name of BrO2??
32What is the formula for silver acetate?
33What is the name of HNO2?
34What is the IUPAC name of [Co(NH3)6]Cl3?
35What is the oxidation state of sulfur in S2O7[@U00B2]??
36What is the name of Cr3O2Cl2 according to IUPAC?
37What is the formula for tetrammineplatinum(II) chloride?
Learning Goals

Study Outcomes

  1. Understand Systematic IUPAC Rules -

    Learn the core principles of IUPAC nomenclature to name both ionic and molecular compounds accurately using a naming compounds generator.

  2. Apply Oxidation State Conventions -

    Use oxidation state rules to determine the correct naming of compounds like NaIO2, identifying oxidation numbers and proper suffixes.

  3. Analyze Formulas with a Naming Compounds Generator -

    Engage with interactive quiz questions to practice naming compounds and reinforce your formula writing skills.

  4. Evaluate Naming Compounds Examples and Answers -

    Review common naming examples and answers to recognize frequent mistakes and improve accuracy in chemical compound naming.

  5. Generate Precise Compound Names and Formulas -

    Convert between chemical formulas and their systematic names confidently, enhancing your proficiency in chemical compound naming quizzes.

  6. Interpret Polyatomic Ion Nomenclature -

    Identify and apply naming conventions for polyatomic ions to ensure correct and consistent nomenclature in complex compounds.

Study Guide

Cheat Sheet

  1. Oxidation States & Roman Numerals -

    Mastering oxidation states is key to systematic chemical compound naming; according to IUPAC guidelines, the sum of oxidation numbers in a neutral compound must equal zero. Use the OIL RIG mnemonic ("Oxidation Is Loss, Reduction Is Gain") to track electron shifts, and apply Roman numerals for transition metals (e.g., FeClâ‚‚ = iron(II) chloride).

  2. Binary Ionic vs. Molecular Compounds -

    Distinguish ionic compounds (metal + nonmetal) from covalent/molecular compounds (nonmetal + nonmetal) by referring to electronegativity differences from sources like the American Chemical Society. In ionic naming, list the cation then the anion (e.g., NaCl = sodium chloride), whereas molecular naming uses prefixes (e.g., COâ‚‚ = carbon dioxide).

  3. Polyatomic Ions & NaIOâ‚‚ Name -

    Familiarize yourself with common polyatomic ions - memorable via "Nick the Camel Ate a Clam for Supper in Phoenix" for NO₃❻, CO₃²❻, ClO₂❻, SO₄²❻, PO₄³❻ - and learn that IO₂❻ is the iodite ion, making NaIO₂ sodium iodite. Resources like PubChem and university chemistry departments list standard charges and names for quick reference.

  4. Prefix Rules for Covalent Compounds -

    For nonmetal - nonmetal compounds, apply Greek prefixes (mono-, di-, tri-, etc.) to indicate atom counts, dropping "mono-" on the first element (e.g., Pâ‚‚Oâ‚… = diphosphorus pentoxide). This rule is outlined in textbooks like Zumdahl's Principles of Chemistry to ensure consistency in naming covalent substances.

  5. Practice with a Naming Compounds Generator Quiz -

    Use a free naming compounds generator quiz to reinforce formula writing skills and compare your answers to naming compounds examples and answers provided by reputable educational sites. Immediate feedback helps identify weak spots and boosts confidence as you master chemical compound naming.

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Michael HodgeEdTech Product Lead & Assessment Design SpecialistQuiz Maker
Updated Feb 19, 2026