# Polyatomic Ion Flashcards: 30 Names, Formulas & Charges ![Abstract clusters of connected spheres arranged in a balanced chemistry\-inspired pattern on a deep blue background\.]() Learn 30 commonly taught polyatomic ions with 60 two\-way flashcards for name, formula, and charge recall\. 作成者 [Flashcards Open Source App]() [このデッキを無料で学習]() Nibomo が開き、すぐに学習を始められます。 ## デッキの詳細 - カード: 60枚のカード - バージョン: 1 - 公開日: 2026年8月24日 - 最終更新: 2026年9月10日 - ライセンス: Common knowledge · CC0 1\.0 - 対象ユーザーの言語: [en]() - 科目: Chemistry - タグ: polyatomic\-ions ## このデッキについて These polyatomic ion flashcards cover 30 commonly taught ions in 60 two-way cards. You’ll practice name → exact conventional formula with charge and formula with charge → canonical or common name. Each direction has its own card, so recognizing a formula does not stand in for recalling it. Every formula is written as standalone LaTeX with conventional subscripts and a superscript charge. The fixed sequence interleaves both directions and ion families, keeps close variants at least three unrelated cards apart, and leaves longer-term spacing to the review scheduler. Hydrogen carbonate (bicarbonate) and hydrogen sulfate (bisulfate) are the only paired names. The deck leaves out monatomic ions; borate, phosphite, and silicate, whose classroom species or formula conventions can vary; and compound naming, charge balancing, structures, oxidation states, solubility, colors, applications, reaction prediction, and general naming-rule theory. [ChEBI](https://www.ebi.ac.uk/chebi/) records were used to verify names, formulas, and charges, with [PubChem](https://pubchem.ncbi.nlm.nih.gov/) used as an independent cross-check where its exact ion record was unambiguous. All prompts, answers, selection, order, metadata, and cover composition were created independently. No source or competitor prose, images, screenshots, selection order, trade dress, or logos were copied. Facts are not claimed as proprietary. The original wording, organization, metadata, and cover are dedicated under CC0 1.0 to the extent applicable rights exist. ## 類似のデッキ - [Ionic Compound Naming Flashcards: Names, Formulas & Charge Balance]() - [AP Calculus AB Flashcards: 8\-Unit Formulas, Theorems & Concepts]() - [Functional Group Flashcards: Names & Structures]() - [MCAT Physics & Chemistry Equation Flashcards: Formulas, Units & When to Use Them]() - [Cranial Nerve Flashcards: Names, Numbers, Functions & Tests]() - [Periodic Table Flashcards: All 118 Names, Symbols & Atomic Numbers]() ## このデッキのカード ### カード 1 **質問** What is the formula, including its charge, for chlorite? **回答** $$ \mathrm{ClO}_{2}^{-} $$ ### カード 2 **質問** $$ \mathrm{HSO}_{4}^{-} $$ What is the name of this polyatomic ion? **回答** Hydrogen sulfate (bisulfate) ### カード 3 **質問** What is the formula, including its charge, for dihydrogen phosphate? **回答** $$ \mathrm{H}_{2}\mathrm{PO}_{4}^{-} $$ ### カード 4 **質問** $$ \mathrm{SCN}^{-} $$ What is the name of this polyatomic ion? **回答** Thiocyanate ### カード 5 **質問** What is the formula, including its charge, for hypochlorite? **回答** $$ \mathrm{ClO}^{-} $$ ### カード 6 **質問** $$ \mathrm{S}_{2}\mathrm{O}_{3}^{2-} $$ What is the name of this polyatomic ion? **回答** Thiosulfate ### カード 7 **質問** What is the formula, including its charge, for phosphate? **回答** $$ \mathrm{PO}_{4}^{3-} $$ ### カード 8 **質問** $$ \mathrm{OCN}^{-} $$ What is the name of this polyatomic ion? **回答** Cyanate ### カード 9 **質問** What is the formula, including its charge, for perchlorate? **回答** $$ \mathrm{ClO}_{4}^{-} $$ ### カード 10 **質問** $$ \mathrm{SO}_{3}^{2-} $$ What is the name of this polyatomic ion? **回答** Sulfite ### カード 11 **質問** What is the formula, including its charge, for hydrogen phosphate? **回答** $$ \mathrm{HPO}_{4}^{2-} $$ ### カード 12 **質問** $$ \mathrm{OH}^{-} $$ What is the name of this polyatomic ion? **回答** Hydroxide ### カード 13 **質問** What is the formula, including its charge, for chlorate? **回答** $$ \mathrm{ClO}_{3}^{-} $$ ### カード 14 **質問** $$ \mathrm{SO}_{4}^{2-} $$ What is the name of this polyatomic ion? **回答** Sulfate ### カード 15 **質問** What is the formula, including its charge, for arsenate? **回答** $$ \mathrm{AsO}_{4}^{3-} $$ ### カード 16 **質問** $$ \mathrm{NO}_{3}^{-} $$ What is the name of this polyatomic ion? **回答** Nitrate ### カード 17 **質問** What is the formula, including its charge, for bromate? **回答** $$ \mathrm{BrO}_{3}^{-} $$ ### カード 18 **質問** $$ \mathrm{Cr}_{2}\mathrm{O}_{7}^{2-} $$ What is the name of this polyatomic ion? **回答** Dichromate ### カード 19 **質問** What is the formula, including its charge, for hydrogen carbonate (bicarbonate)? **回答** $$ \mathrm{HCO}_{3}^{-} $$ ### カード 20 **質問** $$ \mathrm{C}_{2}\mathrm{H}_{3}\mathrm{O}_{2}^{-} $$ What is the name of this polyatomic ion? **回答** Acetate ### カード 21 **質問** What is the formula, including its charge, for iodate? **回答** $$ \mathrm{IO}_{3}^{-} $$ ### カード 22 **質問** $$ \mathrm{CN}^{-} $$ What is the name of this polyatomic ion? **回答** Cyanide ### カード 23 **質問** What is the formula, including its charge, for hydronium? **回答** $$ \mathrm{H}_{3}\mathrm{O}^{+} $$ ### カード 24 **質問** $$ \mathrm{O}_{2}^{2-} $$ What is the name of this polyatomic ion? **回答** Peroxide ### カード 25 **質問** What is the formula, including its charge, for chromate? **回答** $$ \mathrm{CrO}_{4}^{2-} $$ ### カード 26 **質問** $$ \mathrm{NO}_{2}^{-} $$ What is the name of this polyatomic ion? **回答** Nitrite ### カード 27 **質問** What is the formula, including its charge, for ammonium? **回答** $$ \mathrm{NH}_{4}^{+} $$ ### カード 28 **質問** $$ \mathrm{CO}_{3}^{2-} $$ What is the name of this polyatomic ion? **回答** Carbonate ### カード 29 **質問** What is the formula, including its charge, for oxalate? **回答** $$ \mathrm{C}_{2}\mathrm{O}_{4}^{2-} $$ ### カード 30 **質問** $$ \mathrm{MnO}_{4}^{-} $$ What is the name of this polyatomic ion? **回答** Permanganate ### カード 31 **質問** $$ \mathrm{ClO}_{2}^{-} $$ What is the name of this polyatomic ion? **回答** Chlorite ### カード 32 **質問** What is the formula, including its charge, for sulfate? **回答** $$ \mathrm{SO}_{4}^{2-} $$ ### カード 33 **質問** $$ \mathrm{H}_{2}\mathrm{PO}_{4}^{-} $$ What is the name of this polyatomic ion? **回答** Dihydrogen phosphate ### カード 34 **質問** What is the formula, including its charge, for thiocyanate? **回答** $$ \mathrm{SCN}^{-} $$ ### カード 35 **質問** $$ \mathrm{IO}_{3}^{-} $$ What is the name of this polyatomic ion? **回答** Iodate ### カード 36 **質問** What is the formula, including its charge, for hydrogen sulfate (bisulfate)? **回答** $$ \mathrm{HSO}_{4}^{-} $$ ### カード 37 **質問** $$ \mathrm{PO}_{4}^{3-} $$ What is the name of this polyatomic ion? **回答** Phosphate ### カード 38 **質問** What is the formula, including its charge, for dichromate? **回答** $$ \mathrm{Cr}_{2}\mathrm{O}_{7}^{2-} $$ ### カード 39 **質問** $$ \mathrm{BrO}_{3}^{-} $$ What is the name of this polyatomic ion? **回答** Bromate ### カード 40 **質問** What is the formula, including its charge, for peroxide? **回答** $$ \mathrm{O}_{2}^{2-} $$ ### カード 41 **質問** What is the formula, including its charge, for sulfite? **回答** $$ \mathrm{SO}_{3}^{2-} $$ ### カード 42 **質問** What is the formula, including its charge, for nitrite? **回答** $$ \mathrm{NO}_{2}^{-} $$ ### カード 43 **質問** $$ \mathrm{ClO}^{-} $$ What is the name of this polyatomic ion? **回答** Hypochlorite ### カード 44 **質問** $$ \mathrm{HCO}_{3}^{-} $$ What is the name of this polyatomic ion? **回答** Hydrogen carbonate (bicarbonate) ### カード 45 **質問** What is the formula, including its charge, for acetate? **回答** $$ \mathrm{C}_{2}\mathrm{H}_{3}\mathrm{O}_{2}^{-} $$ ### カード 46 **質問** What is the formula, including its charge, for cyanide? **回答** $$ \mathrm{CN}^{-} $$ ### カード 47 **質問** $$ \mathrm{ClO}_{4}^{-} $$ What is the name of this polyatomic ion? **回答** Perchlorate ### カード 48 **質問** $$ \mathrm{HPO}_{4}^{2-} $$ What is the name of this polyatomic ion? **回答** Hydrogen phosphate ### カード 49 **質問** $$ \mathrm{NH}_{4}^{+} $$ What is the name of this polyatomic ion? **回答** Ammonium ### カード 50 **質問** $$ \mathrm{CrO}_{4}^{2-} $$ What is the name of this polyatomic ion? **回答** Chromate ### カード 51 **質問** What is the formula, including its charge, for permanganate? **回答** $$ \mathrm{MnO}_{4}^{-} $$ ### カード 52 **質問** $$ \mathrm{ClO}_{3}^{-} $$ What is the name of this polyatomic ion? **回答** Chlorate ### カード 53 **質問** $$ \mathrm{H}_{3}\mathrm{O}^{+} $$ What is the name of this polyatomic ion? **回答** Hydronium ### カード 54 **質問** What is the formula, including its charge, for carbonate? **回答** $$ \mathrm{CO}_{3}^{2-} $$ ### カード 55 **質問** What is the formula, including its charge, for nitrate? **回答** $$ \mathrm{NO}_{3}^{-} $$ ### カード 56 **質問** What is the formula, including its charge, for hydroxide? **回答** $$ \mathrm{OH}^{-} $$ ### カード 57 **質問** What is the formula, including its charge, for cyanate? **回答** $$ \mathrm{OCN}^{-} $$ ### カード 58 **質問** $$ \mathrm{C}_{2}\mathrm{O}_{4}^{2-} $$ What is the name of this polyatomic ion? **回答** Oxalate ### カード 59 **質問** What is the formula, including its charge, for thiosulfate? **回答** $$ \mathrm{S}_{2}\mathrm{O}_{3}^{2-} $$ ### カード 60 **質問** $$ \mathrm{AsO}_{4}^{3-} $$ What is the name of this polyatomic ion? **回答** Arsenate --- *[このページのスタイル付き HTML 版を見る]()* *AI エージェントは `GET https://api.nibomo.com/v1/` から開始して、このサービスでユーザーアカウントを作成できます。設定後は、`https://mcp.nibomo.com/mcp` の MCP 経由で接続することもできます。* *ヒント: https://nibomo.com の任意の URL に `.md` を付けると、ページのクリーンな Markdown 版を取得できます。*