化学课程描述
Chemistry Course Description
化学是所有高中生高中三年的必修课。化学是一门研究物质的组成、结构、性质以及变化规律的基础自然学科，掌握和应用化学科学。
本课程主要内容：包括必修课程和选修课程两部分。 
（1）必修课程包含实验学化学、化学物质及其变化、金属及其化合物、非金属及其化合物、物质结构元素周期律、化学反应与能量、有机化合物、化学与自然资源的开发利用、化学与健康、生活中的材料、化学与可持续发展等内容。 
（2）选修课程包含化学与生活，有机化学基础，化学反应原理，化学与技术，物质结构与性质，实验化学。
Chemistry should be taken by all high school students during the three-year study. High-school chemistry is a basic natural discipline that researches on the composition, structure, nature and change law of object.
Main content of this course included: compulsory courses and elective courses.
(1) The compulsory courses include: laboratory science chemistry, chemical substances and their 
changes, metals and their compounds, non-metal and its compounds, physical structure, periodic 
law of elements, chemical reactions and energy, organic compounds, chemical and natural resources development and utilization, chemistry and health, materials in life, chemistry and sustainable 
development, and so on.
(2) Elective courses include: chemistry and life, organic-based chemistry, chemical reaction theory
chemistry and technology, physical structure and experimental chemistry.
单元内容Module

A.物质的组成、性质和分类 Material composition, nature and classification
(1) To understand the meaning of molecules, atoms, ions and other concepts. Understand the definition of atomic groups.
(2) To understand the difference between physical changes and chemical changes and links.
(3) To understand the concepts of mixtures and cleaners, elements and compounds, metals and nonmetals.
(4) To understand the concept of acid, alkali, salt, oxide and their interrelations.
B.化学用语及常用物理量 Chemical terms and common physical quantities
(1)Remember and correctly write the common elements of the name, symbols, and ion symbols. 
(2)Familiar with the common elements of the valence. Can be written according to the parit
y of the correct formula (formula), or according to the chemical formula to determine the parity
(3)To understand the atomic structure diagram, molecular formula, structural and structural simplicity of the representation.
(4)To understand the relative atomic mass, the definition of relative molecular mass, and can carry out the calculation.
(5)To understand the meaning of the law of conservation of mass.
(6)Can correctly write chemical equations and ion equations, and can carry out the calculation.
(7)To understand the amount of material in the unit - mol (mol), molar mass, gas molar volume, the amount of material concentration, Avogadro constant.
(8)According to the amount of matter and the number of particles (atoms, molecules, ions, etc.), gas volume (standard conditions) between the correlation between the calculation.
C.溶液 Solution
gassy(1) To understand the meaning of the solution.
(2) To understand the concept of solubility saturated solution.
(3) Understand the composition of the solution. Understand the concept of mass fraction of solute in solution and perform the calculations.
(4) To understand the preparation of a certain amount of solute mass, the amount of material concentration solution.
(5) Understanding colloids is a common dispersion
D.物质结构和元素周期律 Material structure and elemental cycle law
(1) To understand the meaning of elements, radionuclides and isotopes.
(2) To understand the atomic composition. Understand the atomic number, the number of n
uclear charge, the number of protons, the number of neutrons, the number of nuclear electrons and the relationship between them.
(3) To understand the electronic arrangement outside the nucleus.
(4) To grasp the essence of elemental cycle law. Understand the structure (period, family) of the periodic table (long) and its application.
(5) Take the third cycle as an example to grasp the relationship between the regularity of elemental properties and the atomic structure in the same period.