Edexcel IGCSE Chemistry 复习笔记 2.8.3 Tests for Cations
Edexcel IGCSE Chemistry 复习笔记 2.8.3 Tests for Cations Tests for Cations Metal cations in aqueous solution can be identified by the colour of the precipitate they form on addition o...
Edexcel IGCSE Chemistry 复习笔记 2.8.2 Flame Tests
Edexcel IGCSE Chemistry 复习笔记 2.8.2 Flame Tests Flame Tests Metal ions produce a colour if heated strongly in a flame Ions from different metals produce different colours The flame test i...
Edexcel IGCSE Chemistry 复习笔记 2.8.1 Tests for Gases DOWNLOAD PDF
Edexcel IGCSE Chemistry 复习笔记 2.8.1 Tests for Gases DOWNLOAD PDF Tests for Gases Many reactions in the lab produce gases which then need to be tested The table below indicates the ...
IB DP Maths: AA HL复习笔记5.9.4 Advanced Applications of Integration
Area Between Curve & y-axis What is meant by the area between a curve and the y-axis? How do I find the area between a curve and the y-axis? Exam Tip Worked Example Volumes of Revolution...
IB DP Maths: AA HL复习笔记5.9.3 Integrating with Partial Fractions
Integrating with Partial Fractions What are partial fractions? Partial fractions arise when a quotient is rewritten as the sum of fractions The process is the opposite of adding or subtracting frac...
IB DP Maths: AA HL复习笔记5.9.2 Further Techniques of Integration
Integration by Substitution What is integration by substitution? Integration by substitution is used when an integrand where reverse chain rule is either not obvious or is not spotted in the latter...
IB DP Maths: AA HL复习笔记5.9.1 Integrating Further Functions
As with other problems in integration the results in this revision note may have further uses such as evaluating a definite integral finding the constant of integration finding areas under a curve,...
IB DP Maths: AA HL复习笔记5.8.4 Differentiating Further Functions
This Revision Note focuses on the results and derivations of results involving the less common trigonometric, exponential and logarithmic functions. As with any function, questions may go on to as...
全球IB大考2022成绩公布！
北京时间7月6日20点，全球IB大考2022年成绩正式出分！ 1. 参考人数上升，满分人数爆冷 从今年的全球数据来看，全球共有173878名学生获得他们从2022年5月考试的IBDP和IBCP成绩，相较于2021年的165857名考生人数增...
