PART I · SHORT RESPONSE第一部分 · 短答题AP-style MCQ + ON/BC/AB short answer · 23 marksAP 风格选择题 + 安/卑/阿省考短答 · 共 23 分
Section A · Short ResponseA 部分 · 短答题
Mix of multiple-choice and short-answer items. For MCQs, circle the letter and briefly justify your reasoning. For short-answer items, write the full name or formula in the space provided. No calculator needed for Part I.本节包含选择题与短答题。选择题请圈出字母答案,并简述理由。短答题请在空格中写出完整名称或化学式。第一部分无需使用计算器。
Q1EASY易🇺🇸 US美AP-style MCQAP 风格选择题§1 Ions and Charges离子与电荷[3 marks][3 分]
Sulfur (S) is in Group 16 of the periodic table. Which ion does sulfur typically form?硫(S)位于元素周期表第 16 族。硫通常形成哪种离子?
(e)Write the formula for "hydrobromic acid": _______________________写出"hydrobromic acid(氢溴酸)"的化学式:_______________________[1]
PART II · EXTENDED RESPONSE第二部分 · 简答题AP-feeder FRQ + honors · 31 marksAP 衔接简答题 + 荣誉级 · 共 31 分
Section B · Extended ResponseB 部分 · 简答题
Show your reasoning at each step. For transition-metal compounds, show the charge calculation that leads to the Roman numeral. State the name or formula clearly at the end of each part. Calculator not required for Part II.每步均需写出推理过程。对于过渡金属化合物,写出推导出罗马数字的电荷计算过程。在每小问末尾清楚写出名称或化学式。第二部分无需使用计算器。
For each compound below, deduce the charge on the metal ion, identify whether a Roman numeral is needed, and write the full IUPAC name.对以下各化合物,推导出金属离子的电荷,判断是否需要罗马数字,并写出完整的 IUPAC 名称。
(a)CuBr$_2$CuBr$_2$[2]
(b)Fe$_2$O$_3$Fe$_2$O$_3$[3]
(c)MnO$_2$MnO$_2$[2]
Q7MEDIUM中🇺🇸 US美AP-feeder FRQAP 衔接简答题§3 Polyatomic ions in compounds含多原子离子的化合物[8 marks][8 分]
Name each compound. Identify the polyatomic ion present and its charge, then apply the two-step naming rule.命名以下各化合物。先指出其中所含多原子离子及其电荷,再套用两步命名规则。
Use the criss-cross method to write the formula for each compound. Show the ion charges and the criss-cross step clearly.用交叉法写出以下各化合物的化学式。清楚写出离子电荷及交叉步骤。
Answer the following questions on molecular compounds and acids. Justify your reasoning in each case.回答以下关于共价化合物和酸的问题。每小问均需写出判断依据。
(a)Name $\text{N}_2\text{O}_3$. Explain why you do not use a Roman numeral.命名 $\text{N}_2\text{O}_3$。解释为何不使用罗马数字。[2]
(b)Write the formula for sulfurous acid, $\text{H}_2\text{SO}_3$. Identify the anion and state its charge.写出亚硫酸(sulfurous acid)$\text{H}_2\text{SO}_3$ 的化学式。指出其阴离子并说明其电荷。[2]
(c)Explain why carbon monoxide (CO) is not named "carbon monooxide." What rule governs the name?解释为什么一氧化碳(CO)不叫"carbon monooxide"。哪条规则决定了该名称?[2]
(d)A student claims that HClO$_4$(aq) is named "hydrogen chlorate." Identify and correct the student's error.某学生声称 HClO$_4$(aq) 的名称是"hydrogen chlorate"。指出并纠正该学生的错误。[2]
PART III · MODELING / APPLIED第三部分 · 建模与应用AB Diploma + Universal · 28 marks阿省毕业考 + 通用题型 · 共 28 分
Section C · Modeling and ApplicationsC 部分 · 建模与应用
For each question, clearly identify the ions or compound type before applying naming rules. Show each step of charge balancing when writing formulas. Conclude with a complete name or formula. Calculator not required for Part III.每题需在套用命名规则前先明确指出离子或化合物类型。书写化学式时逐步写出电荷平衡过程。以完整的名称或化学式作结。第三部分无需使用计算器。
Write the formula for each compound. For each, state the ion charges and use the criss-cross method to determine the subscripts.写出以下各化合物的化学式。对每个化合物,写出离子电荷并用交叉法确定下标。
Hydrates are ionic compounds with water molecules incorporated into the crystal structure. Answer the following questions.水合物是晶体结构中含有水分子的离子化合物。回答以下问题。
(a)Name $\text{CuSO}_4 \cdot 5\text{H}_2\text{O}$. Explain what the "$\cdot 5\text{H}_2\text{O}$" indicates.命名 $\text{CuSO}_4 \cdot 5\text{H}_2\text{O}$。解释"$\cdot 5\text{H}_2\text{O}$"的含义。[3]
(b)Name $\text{Na}_2\text{CO}_3 \cdot 10\text{H}_2\text{O}$ and give its common name.命名 $\text{Na}_2\text{CO}_3 \cdot 10\text{H}_2\text{O}$ 并给出其俗名。[3]
(c)Match each trivial name to its correct formula and IUPAC name: (i) table salt, (ii) baking soda, (iii) quicklime.将以下俗名与正确的化学式和 IUPAC 名称对应:(i) 食盐(table salt),(ii) 小苏打(baking soda),(iii) 生石灰(quicklime)。[3]
Q12HARD难🇺🇸 US美AP-feeder FRQAP 衔接简答题§1-§7 Comprehensive - naming and formula writing综合 - 命名与化学式书写[10 marks][10 分]
This question spans all seven sections of the unit. Show your reasoning at every step.本题涵盖本单元全部七节内容。每步均需写出推理过程。
(a)Classify each formula as (i) ionic, (ii) molecular, or (iii) acid, and name it: $\text{SO}_2$; $\text{MgCl}_2$; $\text{HNO}_3\text{(aq)}$.将以下各化学式归类为(i)离子化合物、(ii)共价化合物或(iii)酸,并命名:$\text{SO}_2$;$\text{MgCl}_2$;$\text{HNO}_3\text{(aq)}$。[3]
(b)Name $\text{Mn}_2\text{O}_3$. Show the calculation that gives the manganese charge.命名 $\text{Mn}_2\text{O}_3$。写出计算锰的电荷的过程。[3]
(c)Write the formula for perchloric acid. Identify the anion, its charge, and show how many H$^+$ ions are needed.写出高氯酸(perchloric acid)的化学式。指出阴离子及其电荷,并说明需要多少个 H$^+$ 离子。[2]
(d)A student writes the formula for "iron(II) phosphate" as FePO$_4$. Identify the error and give the correct formula.某学生将"磷酸铁(II)(iron(II) phosphate)"的化学式写为 FePO$_4$。指出错误并给出正确化学式。[2]
🇺🇸 US NGSS美国 NGSSFoundational skill; no dedicated PE, supports HS-PS1-1 through HS-PS1-7基础技能;无专属考查点,支撑 HS-PS1-1 至 HS-PS1-7
Full Syllabus Map lives in ../Study Guides/Unit_4_Nomenclature_and_Chemical_Formulae.html. NGSS treats naming as a cross-cutting tool, so US region chips appear on questions covering skills tested by AP Chemistry.完整大纲对照表见 ../Study Guides/Unit_4_Nomenclature_and_Chemical_Formulae.html。NGSS 将命名视为横向工具,US 地区标签出现在 AP 化学考查技能的题目上。