【PEP】High School Chemistry Compulsory Course Book 1

This course is based on the People's Education Press high school chemistry compulsory textbook, Volume 1, covering fundamental theories such as classification of matter, ion reactions, and redox reactions, as well as the properties and compounds of key metallic and non-metallic elements including sodium, chlorine, and iron. It introduces core chemical stoichiometry concepts like "amount of substance," serving as a foundational module for high school chemistry learning.

Explore the laws governing changes in the microscopic world and master essential chemical literacy.

Author: Wang Jing, Zheng Changlong

Acknowledgments: Approved by the National Textbook Committee Expert Review (2019); First National Textbook Construction Award – National Outstanding Textbook First Prize

1. Master classification methods: Be able to classify substances and chemical reactions using tree diagrams and cross-classification, and identify characteristics of different dispersion systems (especially colloids).
2. Understand reaction essence: Grasp the ionization process of electrolytes in aqueous solutions, master the steps for writing ionic equations, and determine whether reactions occur based on the conditions of double displacement reactions.
3. Establish a conservation of electrons perspective: Identify redox reactions from changes in oxidation states and electron transfer, distinguish oxidizing agents from reducing agents, and understand the essence of chemical reactions.
4. Describe the physical and chemical properties of elemental sodium and chlorine, and their important compounds (e.g., Na_2O_2, Na_2CO_3, NaHCO_3, HClO) through experimental observation.
5. Master the conversion relationships among amount of substance (n), Avogadro’s constant (N_A), molar mass (M), molar volume of gases (V_m), and molarity (c).
6. Perform standardized operations with volumetric flasks, independently prepare solutions of specified molar concentration, and conduct error analysis.
7. Macroscopic Identification and Microscopic Exploration: Observe characteristic colors and reaction phenomena of iron and its compounds through experiments, and analyze their transformations from the perspectives of ionic and redox reactions.
8. Evidence Reasoning and Model Cognition: Establish the “iron triangle” (Fe, Fe^{2+}, Fe^{3+}) transformation model, master methods for testing iron ions, and apply purification strategies.
9. Scientific Inquiry and Social Responsibility: Understand how composition affects performance in alloys (e.g., steel, aluminum alloys), and recognize the importance of chemistry in electronics (copper-clad board etching) and food safety (iron supplement testing).
10. Master atomic structure and nuclide concepts: Accurately calculate relationships between mass number, proton number, and neutron number; identify and differentiate isotopes.