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Introduction to Valence Bond Theory (VBT)
Math theory and mathematical formula equation doodle handwriting icon in blackboard background with hand drawn model used for school education and document decoration, create by vector
Color wheel flower. Primary, secondary, tertiary colors. Color theory. Understanding colors.
Color theory. Diagram or scheme of color relationships on eight color wheels isolated. Primary, analogous, complementary, double-complementary, triadic, split-complementary, square, tetradic colors.
Knowledge, creative thinking, ideas vector icons set
Endosymbiosis process stages with symbiotic living organisms outline diagram. Labeled educational biological evolution theory steps with ancestral prokaryote evolving and eukaryote vector illustration

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