Basic Principles of Organic Chemistry

No period in the history of organic chemistry has been as dynamic and productive of research accomplishment as the twelve years between the completion of the first and present editions of this textbook. New reagents, new reactions, and extraordinary syntheses have been manifold. New techniques and new instruments for analysis and determination of structures, improved methods for theoretical calculations, as well as new junctures with physical, inorganic, and biochemistry, have made organic chemistry an enormously vital discipline.

English Grammar Tenses with Fun - 1. Introduction

The course consists of 47 video lectures and covers all 12 English grammar tenses, which are thoroughly explained in 3 types of lectures.

1. The Theoretical Lectures

2. The Practical lectures

3. The Fun lectures

English Grammar Tenses with Fun - 10. Past Continuous Tense

The course consists of 47 video lectures and covers all 12 English grammar tenses, which are thoroughly explained in 3 types of lectures.

1. The Theoretical Lectures

2. The Practical lectures

3. The Fun lectures

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English Grammar Tenses with Fun - 9. Past Simple Tense

The course consists of 47 video lectures and covers all 12 English grammar tenses, which are thoroughly explained in 3 types of lectures.

1. The Theoretical Lectures

2. The Practical lectures

3. The Fun lectures

Dear User! Your publication has been rejected as it seems to be a duplicate of another publication that already exists on Englishtips. Please make sure you always check BEFORE submitting your publication. If you only have an alternative link for an existing publication, please add it using the special field for alternative links in that publication.
Thank you!

English Grammar Tenses with Fun - 6. Regular and Irregular Verbs

The course consists of 47 video lectures and covers all 12 English grammar tenses, which are thoroughly explained in 3 types of lectures.

1. The Theoretical Lectures

2. The Practical lectures

3. The Fun lectures

Dear User! Your publication has been rejected as it seems to be a duplicate of another publication that already exists on Englishtips. Please make sure you always check BEFORE submitting your publication. If you only have an alternative link for an existing publication, please add it using the special field for alternative links in that publication.
Thank you!