化学基础 Certification
像化学家一样思考——原子、反应，以及将二者联系起来的定量推理
Key facts
- Level: Foundation
- Field: Chemistry
- Estimated study time: about 18 hours
- Credential price: $39
- Exam: 60 questions · 90 minutes · pass mark 70%
About the 化学基础 certification
一项基础级认证，从零开始构建完整、可用的普通化学心智模型。你将学习物质是什么及其状态与性质的分类（物理变化与化学变化、强度性质与广延性质）；如何区分元素、化合物与混合物；原子结构（质子、中子、电子）、原子序数与质量数以及同位素；元素周期表如何按族与周期排列及其变化规律（原子半径、电离能、电负性）；电子构型与价电子；主要化学键类型（离子键、共价键、金属键）、键的极性及路易斯结构基础；如何读写化学式并命名简单化合物；摩尔概念、摩尔质量与阿伏伽德罗常数；如何配平化学方程式并分类反应（化合、分解、单置换与双置换、燃烧）；化学计量学要领，包括摩尔比、限量试剂与产率；气体行为的玻意耳定律、查理定律与理想气体定律；溶液与浓度（摩尔浓度与稀释）；酸、碱、pH标度与中和反应；热化学基础（放热与吸热变化）；以及支撑良好实验工作的测量与安全规范。每个概念均辅以解题计算加以强化，使定量推理成为第二本能。这是进阶至联级普通化学与物理化学的自然第一步。
What you will learn
The official 化学基础 study course covers:
- Matter and How We Classify It — What matter is, its states and the transitions between them, the difference between physical and chemical change, and how elements, compounds, and mi…
- The Atom and the Periodic Table — Inside the atom — protons, neutrons, electrons, isotopes, and ions; how electrons are arranged; and how the periodic table organises the elements and…
- Bonding, Formulas, and Names — Why and how atoms bond — ionic, covalent, and metallic; bond polarity and Lewis basics; and how to read, write, and name chemical formulas.
- The Mole, Reactions, and Stoichiometry — The mole and molar mass, how to balance equations and classify reaction types, and how to use mole ratios, limiting reagents, and percent yield.
- Gases, Solutions, Acids/Bases, and Energy — Gas behaviour and the gas laws, solutions and concentration, acids, bases and pH, thermochemistry (exo/endothermic), and the measurement and safety h…
Frequently asked questions
- Is the 化学基础 certificate verifiable?
- Yes. Every issued Hootix Academy certificate carries a unique credential code that anyone can verify online.
- How is the 化学基础 exam structured?
- It is a 90-minute proctored multiple-choice exam of 60 questions; you need 70% to pass.
- Do I need to buy the course to take the exam?
- You can purchase the certification exam on its own, or bundle it with the full study course at a reduced price.
- How long does the 化学基础 course take?
- About 18 hours of self-paced study.