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Cathode Ray Discovery - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L13-112/the-nucleus/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T1/L13/T1_L13_hero.jpg The Nucleus - ChemMate Lesson Hero Graphic Gold Foil Experiment - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L13-112/the-nucleus/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L13-112/the-nucleus/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L13-112/the-nucleus/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L13-112/the-nucleus/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L13-112/the-nucleus/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L13-112/the-nucleus/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T1/L13/T1_L13_hero.jpg The Nucleus - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for The Nucleus. Gold Foil Experiment - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L14-113/discrete-quantized-energy-states/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T1/L14/T1_L14_hero.jpg Discrete Quantized Energy States - ChemMate Lesson Hero Graphic Quantized Energy Levels - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L14-113/discrete-quantized-energy-states/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L14-113/discrete-quantized-energy-states/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L14-113/discrete-quantized-energy-states/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L14-113/discrete-quantized-energy-states/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L14-113/discrete-quantized-energy-states/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L14-113/discrete-quantized-energy-states/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T1/L14/T1_L14_hero.jpg Discrete Quantized Energy States - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for Discrete Quantized Energy States. Quantized Energy Levels - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L15-114/atomic-mass-units/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T1/L15/T1_L15_hero.jpg Atomic Mass Units - ChemMate Lesson Hero Graphic Carbon-12 Standard - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L15-114/atomic-mass-units/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L15-114/atomic-mass-units/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L15-114/atomic-mass-units/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L15-114/atomic-mass-units/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L15-114/atomic-mass-units/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L15-114/atomic-mass-units/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T1/L15/T1_L15_hero.jpg Atomic Mass Units - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for Atomic Mass Units. Carbon-12 Standard - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L16-115/the-periodic-law/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T1/L16/T1_L16_hero.jpg The Periodic Law - ChemMate Lesson Hero Graphic Modern Arrangement - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L16-115/the-periodic-law/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L16-115/the-periodic-law/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L16-115/the-periodic-law/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L16-115/the-periodic-law/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L16-115/the-periodic-law/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L16-115/the-periodic-law/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T1/L16/T1_L16_hero.jpg The Periodic Law - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for The Periodic Law. Modern Arrangement - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L17-116/metallic-nature/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T1/L17/T1_L17_hero.jpg Metallic Nature - ChemMate Lesson Hero Graphic Luster & Conductivity - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L17-116/metallic-nature/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L17-116/metallic-nature/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L17-116/metallic-nature/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L17-116/metallic-nature/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L17-116/metallic-nature/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L17-116/metallic-nature/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T1/L17/T1_L17_hero.jpg Metallic Nature - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for Metallic Nature. Luster & Conductivity - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L18-117/non-metal-logic/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T1/L18/T1_L18_hero.jpg Non-Metal Logic - ChemMate Lesson Hero Graphic High Electron Affinity and Electronegativity - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L18-117/non-metal-logic/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L18-117/non-metal-logic/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L18-117/non-metal-logic/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L18-117/non-metal-logic/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L18-117/non-metal-logic/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L18-117/non-metal-logic/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T1/L18/T1_L18_hero.jpg Non-Metal Logic - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for Non-Metal Logic. High Electron Affinity and Electronegativity - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L19-118/the-staircase/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T1/L19/T1_L19_hero.jpg The Staircase - ChemMate Lesson Hero Graphic Metalloids, Band Gaps & Semiconductors - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L19-118/the-staircase/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L19-118/the-staircase/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L19-118/the-staircase/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L19-118/the-staircase/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L19-118/the-staircase/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L19-118/the-staircase/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T1/L19/T1_L19_hero.jpg The Staircase - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for The Staircase. Metalloids, Band Gaps & Semiconductors - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L20-119/valence-stability-and-electron-configurations/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T1/L20/T1_L20_hero.jpg Valence Stability and Electron Configurations - ChemMate Lesson Hero Graphic Noble Gas Configuration - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L20-119/valence-stability-and-electron-configurations/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L20-119/valence-stability-and-electron-configurations/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L20-119/valence-stability-and-electron-configurations/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L20-119/valence-stability-and-electron-configurations/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L20-119/valence-stability-and-electron-configurations/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L20-119/valence-stability-and-electron-configurations/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T1/L20/T1_L20_hero.jpg Valence Stability and Electron Configurations - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for Valence Stability and Electron Configurations. Noble Gas Configuration - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L21-120/group-17-kinetics-and-electronegativity/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T1/L21/T1_L21_hero.jpg Group 17 Kinetics and Electronegativity - ChemMate Lesson Hero Graphic Halogen Reactivity and Electron Affinities - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L21-120/group-17-kinetics-and-electronegativity/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L21-120/group-17-kinetics-and-electronegativity/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L21-120/group-17-kinetics-and-electronegativity/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L21-120/group-17-kinetics-and-electronegativity/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L21-120/group-17-kinetics-and-electronegativity/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L21-120/group-17-kinetics-and-electronegativity/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T1/L21/T1_L21_hero.jpg Group 17 Kinetics and Electronegativity - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for Group 17 Kinetics and Electronegativity. Halogen Reactivity and Electron Affinities - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L22-121/carbon-catenation-and-allotropes/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T1/L22/T1_L22_hero.jpg Carbon Catenation and Allotropes - ChemMate Lesson Hero Graphic Tetravalence, Orbital Hybridization, and Allotropic Diversity - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L22-121/carbon-catenation-and-allotropes/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L22-121/carbon-catenation-and-allotropes/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L22-121/carbon-catenation-and-allotropes/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L22-121/carbon-catenation-and-allotropes/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L22-121/carbon-catenation-and-allotropes/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L22-121/carbon-catenation-and-allotropes/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T1/L22/T1_L22_hero.jpg Carbon Catenation and Allotropes - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for Carbon Catenation and Allotropes. Tetravalence, Orbital Hybridization, and Allotropic Diversity - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L23-122/hydrogen-fundamentals/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T1/L23/T1_L23_hero.jpg Hydrogen Fundamentals - ChemMate Lesson Hero Graphic Element Zero? - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L23-122/hydrogen-fundamentals/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L23-122/hydrogen-fundamentals/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L23-122/hydrogen-fundamentals/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L23-122/hydrogen-fundamentals/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L23-122/hydrogen-fundamentals/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-1/NGSS-PS1.1-T1L23-122/hydrogen-fundamentals/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T1/L23/T1_L23_hero.jpg Hydrogen Fundamentals - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for Hydrogen Fundamentals. Element Zero? - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L1-201/element-explorer/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T2/L1/T2_L1_hero.jpg Element Explorer - ChemMate Lesson Hero Graphic The Periodic Table of Elements - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L1-201/element-explorer/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L1-201/element-explorer/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L1-201/element-explorer/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L1-201/element-explorer/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L1-201/element-explorer/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L1-201/element-explorer/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T2/L1/T2_L1_hero.jpg Element Explorer - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for Element Explorer. The Periodic Table of Elements - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L2-202/periodic-trends/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T2/L2/T2_L2_hero.jpg Periodic Trends - ChemMate Lesson Hero Graphic Periodic Trends - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L2-202/periodic-trends/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L2-202/periodic-trends/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L2-202/periodic-trends/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L2-202/periodic-trends/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L2-202/periodic-trends/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L2-202/periodic-trends/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T2/L2/T2_L2_hero.jpg Periodic Trends - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for Periodic Trends. Periodic Trends - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L3-203/electron-map/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T2/L3/T2_L3_hero.jpg Electron Map - ChemMate Lesson Hero Graphic Electron Map - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L3-203/electron-map/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L3-203/electron-map/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L3-203/electron-map/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L3-203/electron-map/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L3-203/electron-map/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.1-T2L3-203/electron-map/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T2/L3/T2_L3_hero.jpg Electron Map - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for Electron Map. 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Intermolecular Forces - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.3-T2L16-216/van-der-waals/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T2/L19/T2_L19_hero.jpg Van der Waals - ChemMate Lesson Hero Graphic Van der Waals - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.3-T2L16-216/van-der-waals/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.3-T2L16-216/van-der-waals/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.3-T2L16-216/van-der-waals/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.3-T2L16-216/van-der-waals/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.3-T2L16-216/van-der-waals/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.3-T2L16-216/van-der-waals/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T2/L19/T2_L19_hero.jpg Van der Waals - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for Van der Waals. Van der Waals - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.3-T2L17-217/h-bond-deep-dive/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T2/L20/T2_L20_hero.jpg H-Bond Deep Dive - ChemMate Lesson Hero Graphic H-Bond Deep Dive - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.3-T2L17-217/h-bond-deep-dive/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.3-T2L17-217/h-bond-deep-dive/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.3-T2L17-217/h-bond-deep-dive/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.3-T2L17-217/h-bond-deep-dive/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.3-T2L17-217/h-bond-deep-dive/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-2/NGSS-PS1.3-T2L17-217/h-bond-deep-dive/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T2/L20/T2_L20_hero.jpg H-Bond Deep Dive - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for H-Bond Deep Dive. 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Colligative Props - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L7-307/avogadros-legacy/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T3/L7/T3_L7_hero.jpg Avogadro's Legacy - ChemMate Lesson Hero Graphic Avogadro's Legacy - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L7-307/avogadros-legacy/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L7-307/avogadros-legacy/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L7-307/avogadros-legacy/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L7-307/avogadros-legacy/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L7-307/avogadros-legacy/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L7-307/avogadros-legacy/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T3/L7/T3_L7_hero.jpg Avogadro's Legacy - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for Avogadro's Legacy. 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Hydrates - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L11-311/limiting-reactants/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T3/L11/T3_L11_hero.jpg Limiting Reactants - ChemMate Lesson Hero Graphic Limiting Reactants - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L11-311/limiting-reactants/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L11-311/limiting-reactants/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L11-311/limiting-reactants/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L11-311/limiting-reactants/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L11-311/limiting-reactants/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L11-311/limiting-reactants/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T3/L11/T3_L11_hero.jpg Limiting Reactants - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for Limiting Reactants. Limiting Reactants - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L12-312/percent-yield/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T3/L12/T3_L12_hero.jpg Percent Yield - ChemMate Lesson Hero Graphic Percent Yield - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L12-312/percent-yield/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L12-312/percent-yield/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L12-312/percent-yield/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L12-312/percent-yield/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L12-312/percent-yield/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L12-312/percent-yield/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T3/L12/T3_L12_hero.jpg Percent Yield - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for Percent Yield. 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Precision Glassware - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L20-320/significant-figures/lesson 2026-09-14 weekly 0.9 https://chemmate-ai-777.web.app/assets/curriculum/T3/L20/T3_L20_hero.jpg Significant Figures - ChemMate Lesson Hero Graphic Significant Figures - Chemistry Course Material https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L20-320/significant-figures/lab 2026-09-14 monthly 0.85 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L20-320/significant-figures/quiz 2026-09-14 monthly 0.8 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L20-320/significant-figures/vocab 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L20-320/significant-figures/assignments 2026-09-14 monthly 0.75 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L20-320/significant-figures/flashcards 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/learn/tier-3/NGSS-HS-PS1-7-T3L20-320/significant-figures/infographic 2026-09-14 monthly 0.7 https://chemmate-ai-777.web.app/assets/curriculum/T3/L20/T3_L20_hero.jpg Significant Figures - Visual Chemistry Infographic & Schematic - ChemMate Lesson Hero Graphic Infographic diagrams and chemical structure for Significant Figures. 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