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"Seven Traps" in the Application of Avogadro's Constant (NA) "Important elements in seawater—sodium and chlorine PPT
下载 305 次
2023-09-25 18:21:26
"Ionization of Electrolytes and Ion Reactions" Elements and the World of Matter PPT Courseware (Lesson 2 Ion Reactions)
下载 944 次
2023-09-25 17:34:03
"Seven Traps" in the Application of Avogadro's Constant (NA) "Important elements in seawater - sodium and chlorine PPT
下载 744 次
2023-10-05 09:46:50
"Ionization of Electrolytes and Ion Reactions" Elements and the World of Matter PPT (Lesson 1: Ionization of Electrolytes)
下载 266 次
2023-09-25 17:34:03
"Ionization of Electrolytes and Ion Reactions" Elements and the World of Matter PPT Courseware (Lesson 2 Ion Reactions)
下载 708 次
2023-09-25 17:34:03
"Redox Reactions" Elements and the World of Matter PPT Courseware (Understanding Redox Reactions in Lesson 1)
下载 738 次
2023-09-25 17:34:03
"Redox Reactions" Elements and the World of Matter PPT Courseware (Understanding Redox Reactions in Lesson 1)
下载 92 次
2023-09-25 17:34:03
"Nitrogen and Its Compounds" Important non-metallic elements in chemical production PPT (Lesson 2: Ammonia and ammonium salts)
下载 553 次
2023-09-25 17:33:59
"Sodium and Its Compounds" Important elements in seawater - sodium and chlorine PPT (Lesson 2: Several compounds of sodium)
下载 676 次
2023-09-20 15:14:43
"Sodium and Its Compounds" Important elements in seawater - sodium and chlorine PPT (several compounds of sodium in lesson 2)
下载 857 次
2023-09-25 18:21:27
"Redox Reactions" Elements and the World of Matter PPT Courseware (Application of Redox Reactions in Lesson 3)
下载 246 次
2023-09-25 17:34:03
"Amount of Matter" Important elements in seawater - sodium and chlorine PPT (Unit of amount of matter in Lesson 1 - mole)
下载 430 次
2023-10-05 09:46:46
"Amount of Matter" Important elements in seawater - sodium and chlorine PPT (Unit of amount of matter in Lesson 1 - mole)
下载 170 次
2023-09-25 18:21:26
"The Effect of Seawater Nature and Movement on Human Activities" Physical Geographic Elements and Phenomenon PPT (Second Lesson)
下载 275 次
2023-10-05 09:37:38
"Ionization of Electrolytes and Ion Reactions" Elements and the World of Matter PPT Courseware (Lesson 1: Ionization of Electrolytes)
下载 853 次
2023-09-25 17:34:03
"Ionization of Electrolytes and Ion Reactions" Elements and the World of Matter PPT Courseware (Lesson 1: Ionization of Electrolytes)
下载 788 次
2023-09-25 17:34:03
"Sodium and Its Compounds" Important elements in seawater - sodium and chlorine PPT (Lesson 1: Active metal element - sodium)
下载 650 次
2023-09-20 15:12:40
"Sulfur and Its Compounds" Important non-metallic elements in chemical production PPT (Lesson 1 Sulfur and Sulfur Dioxide)
下载 805 次
2023-09-25 17:34:00
"Sodium and Its Compounds" Important elements in seawater - sodium and chlorine PPT (Lesson 1: Active metal element - sodium)
下载 745 次
2023-09-25 18:21:27
With background music, download the PPT courseware of the first-grade primary school Chinese textbook "Little Bamboo Raft Painting in the Middle", published by the People's Education Press;
下载 393 次
2023-09-25 17:42:05
"Nitrogen and Its Compounds" Important non-metallic elements in chemical production PPT (Lesson 3: Nitric acid rain and its prevention and control)
下载 610 次
2023-09-25 17:33:59
"Atmospheric Heating Process and Thermodynamic Circulation" Physical Geographic Elements and Phenomenon PPT (First Lesson Atmospheric Heating Process)
下载 370 次
2023-09-25 18:24:41
"Landscape Characteristics of Main Landforms" Natural Geographic Elements and Phenomenon PPT (Lesson 1: Flowing Water Landforms and Coastal Landforms)
下载 208 次
2023-09-25 18:24:41
"Landscape Characteristics of Main Landforms" Natural Geographic Elements and Phenomenon PPT (Lesson 1: Flowing Water Landforms and Coastal Landforms)
下载 525 次
2023-10-05 09:37:36
"Landscape Characteristics of Main Landforms" Natural Geographic Elements and Phenomenon PPT (Aeolian Landform and Karst Landform in the Second Lesson)
下载 358 次
2023-10-05 09:37:36
"Landscape Characteristics of Main Landforms" Natural Geographic Elements and Phenomenon PPT (Aeolian Landform and Karst Landform in the Second Lesson)
下载 571 次
2023-09-25 18:24:41
"Atmospheric Heating Process and Thermal Circulation" Natural Geographical Elements and Phenomena PPT (Second Lesson Thermal Circulation and Atmospheric Movement)
下载 131 次
2023-09-20 15:21:03
"Sulfur and Its Compounds" Important non-metallic elements in chemical production PPT (Test of sulfate ion in lesson 2)
下载 812 次
2023-09-25 17:34:00
"Atmospheric Heating Process and Thermal Circulation" Natural Geographical Elements and Phenomena PPT (Second Lesson Thermal Circulation and Atmospheric Movement)
下载 275 次
2023-09-20 15:21:03
"Atmospheric Heating Process and Thermodynamic Circulation" Physical Geographic Elements and Phenomenon PPT (Second Lesson Thermodynamic Circulation and Atmospheric Movement)
下载 233 次
2023-09-25 18:24:41
"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
"Chlorine and its Compounds" Important elements in seawater - sodium and chlorine PPT (Lesson 2 Laboratory preparation method of chlorine gas and test of chloride ions)
下载 589 次
2023-10-05 09:46:46
"Chlorine and its Compounds" Important elements in seawater - sodium and chlorine PPT (Lesson 2 Laboratory preparation method of chlorine and test of chloride ions)
下载 845 次
2023-09-25 18:21:26
"Transformation of Sulfur" Nature and Transformation of Matter PPT (Lesson 1 Sulfur elements in different valence states in nature and the transformations between them)
下载 800 次
2023-09-25 17:34:01
"The Nature of Seawater and the Impact of its Movement on Human Activities" Physical Geographic Elements and Phenomenon PPT (The Nature of Seawater and its Impact on Human Activities in the First Lesson)
下载 436 次
2023-09-25 18:24:41
"The Nature of Seawater and the Impact of its Movement on Human Activities" Physical Geographic Elements and Phenomenon PPT (The Movement of Seawater and its Impact on Human Activities in the Second Lesson)
下载 589 次
2023-09-25 18:24:40
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