MDS 541.28

Wording: Natural sciences & mathematics Chemistry Chemical Reactions Atomic theory Not set

0 Computer science, information & general works 252,013 ℹ️	1 Philosophy & psychology 270,129 🧠	2 Religion 681,242 🙏	3 Society, government, & culture 1,328,382 👫	4 Language 209,883 💬	5 Natural sciences & mathematics 431,918 🔬	6 Applied science & technology 940,635 💡	7 Arts & recreation 1,031,850 🎨	8 Literature & rhetoric 1,436,736 📚	9 History & geography 837,760 🗺️
50 Science 35,266 🥼	51 Mathematics 82,055 ➗	52 Astronomy 25,356 🔭	53 Physics 44,008 🍎	54 Chemistry 28,260 ⚗️	55 Earth sciences; geology 36,663 🌎	56 Fossils & Dinosaurs 11,038 💀	57 Biology 55,751 🧬	58 Plants (Botany) 26,824 🌿	59 Animals 86,697 🐼
540 Chemistry and allied sciences 6,727 ⚗	541 Chemical Reactions 5,775 💭	542 Techniques, procedures, apparatus, equipment, materials 560 🔬	543 Analytical chemistry 2,912 🌈	544 [Formerly: Qualitative Analysis] 336	545 [Formerly: Quantitative Analysis] 275	546 Elements, Mixtures, Compounds 2,694 ⚨	547 Organic chemistry 6,228 ⌬	548 Crystallography 1,088 💎	549 Mineralogy 1,665 ⚒
541.0 196	541.1 16	541.2 Atomic theory 1,535	541.3 Physical chemistry 3,288	541.4 Various types of compounds 3	541.5 Molecular types 9	541.6 Compound radicals 9	541.7 Allotropy 35	541.8 3	541.9 Other general subjects 20
541.20 1	541.21 1	541.22 700	541.23 1	541.24 23	541.25	541.26 8	541.27	541.28 281	541.29
541.280 11	541.281	541.282	541.283	541.284	541.285	541.286	541.287	541.288	541.289