(1708). Lomonosov’sA Short Russian Chronicle With a Genealogy(1760) was the first textbook on Russian history. In the late 18th and early 19th centuries the Commission for Founding Public Schools published textbooks on mathematics, physics, chemistry, geography, natural sciences and foreign ...
However, electrophilic attack of a proton in an irreversible manner attacks C-2 of pyrrole to form a resonance-stabilized cationic intermediate capable of further transformations. 展开 关键词: Organic chemistry Science education Textbooks DOI: 10.1021/ed076p1151 被引量: 5 ...
NCERT Books for NEET are very important for preparing for the exam and for clearing all the theoretical concepts of subjects like Physics, Chemistry, Zoology and Botany.
Facilitating problem solving in high school chemistry The strategies used were the factor-label method, analogies, diagrams, and proportionality. Six hundred and nine high school students in eight schools were... DL Gabel,RD Sherwood - 《Journal of Research in Science Teaching》 被引量: 99发表:...
Start on a new lesson today. I have the new textbooks, but also do not have English and chemistry textbooks. It is now on a day to 8 lesson, a lesson to 40 minutes, 10 minutes breaks. A day of study and life is hard, but we have a very rich!
This GCE O Level Chemistry study guide lists all the essential key points and formulae of each topic in point form, table form and pictorial form with plenty of examples. "It was an excellent experience A. K." 5 O Level Physics Test Papers This GCE O Level Physics study guide is highly...
aThe goals of green computing are similar to green chemistry: reduce the use of hazardous materials, maximize energy efficiency during the product's lifetime, and promote the recyclability or biodegradability of defunct products and factory waste. 绿色计算的目标于绿色化学是相似的: 在产品的一生期间,...
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A recent study of textbooks aimed at introductory biology courses finds that they devote less than one percent of their text to discussing insects, which make up more than 60 percent of animal species. The study authors argue that this provides a poor fo
Quantum numbers and electron configurations form an important part of the general chemistry curriculum and textbooks. The objectives of this study are: (1) Elaboration of a framework based on the following aspects: (a) Origin of the quantum hypothesis, (b) Alternative interpretations of quantum ...