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"Changes and Properties of Matter" Entering the World of Chemistry PPT Courseware
下载 819 次
2023-09-25 18:21:14
"Important Nutrients for Humans" Chemistry and Life PPT download
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2023-09-20 15:18:51
"Measurement of Energy Transformation" PPT
下载 650 次
2023-09-25 18:16:36
"The Mass of Objects and Its Measurement" PPT courseware on the scale, mass and density of the material world
下载 56 次
2023-09-25 18:19:59
"Solubility of Substances" Dissolution of Substances PPT Courseware
下载 283 次
2023-10-05 09:48:30
"Solubility of Substances" Dissolution of Substances PPT Courseware
下载 846 次
2023-09-25 18:21:18
"Particles Constituting Matter (I) - Molecules" PPT courseware on the composition of air and matter
下载 279 次
2023-09-25 18:21:17
"Try to classify living things" PPT courseware for classifying living things according to their characteristics
下载 590 次
2023-10-05 09:48:15
"Try to classify living things" PPT courseware for classifying living things according to their characteristics
下载 743 次
2023-09-25 18:28:06
"Diversity of Iron" Properties and Transformation of Matter PPT (Lesson 1 Ferrous Salts and Iron Salts)
下载 138 次
2023-09-25 17:34:02
"Commonly used physical quantities in chemistry - the amount of matter" PPT courseware for understanding chemical science (lesson 1: the amount of matter and its unit molar mass)
下载 527 次
2023-09-25 18:21:39
"Exploring the Characteristics of Vaporization and Liquefaction" Material Forms and Their Changes PPT Courseware 2
下载 55 次
2023-09-25 18:20:52
"Classification of Elements and Matter" Elements and the Material World PPT (an important mixture in Lesson 2 - colloid)
下载 535 次
2023-09-25 18:21:38
"Basic Properties of Fractions" Fraction PPT
下载 331 次
2023-09-20 15:13:41
"Commonly used physical quantities in chemistry - the amount of matter" PPT courseware for understanding chemical science (lesson 1, the amount of matter and its unit molar mass)
下载 870 次
2023-10-05 09:46:39
"Sulfur and Its Compounds" Important non-metallic elements in chemical production PPT (Lesson 3: Transformation of sulfur-containing substances in different valence states)
下载 439 次
2023-09-25 17:33:59
"Separation of Matter" PPT
下载 586 次
2023-09-25 18:16:30
"Unit of quantity of matter - mole" PPT courseware on quantity of matter
下载 357 次
2023-09-20 15:12:34
"Phenomena Accompanying Chemical Changes" Changes in Matter PPT Courseware
下载 405 次
2023-09-25 18:15:25
"Nitrogen Cycle" Nature and Transformation of Matter PPT (Lesson 3: The Impact of Nitric Acid Human Activities on the Nitrogen Cycle and the Environment)
下载 612 次
2023-09-25 17:34:00
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