Chemical formulas of substances. Lesson 9. Chemistry, 7th grade.
In this lesson, we'll look at chemical formulas of substances, how they are written and pronounced.
Link to the 7th grade textbook: http://e-padruchnik.adu.by/
Timecodes:
00:00 | What is the "Chemical Formula" of a substance?
01:25 | Chemical Formulas of Simple Substances with Molecular Structure
02:29 | Chemical Formulas of Complex Substances with Molecular Structure
03:02 | Chemical Formulas of Simple Substances with Non-Molecular Structure
03:32 | Chemical Formulas of Complex Substances with Non-Molecular Structure
04:34 | What does the chemical formula of a substance with molecular and non-molecular structure indicate?
05:56 | Task 1 (Paragraph 9)
06:20 | Task 2 (Paragraph 9)
08:34 | Task 3 (Paragraph 9)
09:04 | Task 4 (Paragraph 9)
09:38 | Task 5 (Paragraph 9)
10:18 | Task 6 (Paragraph 9)
10:36 | Task 7 (Paragraph 9)
11:22 | Task 8 (Paragraph 9)
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