Wikipedia:WikiProject Chemistry/Popular pages

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List

Period: 2024-11-01 to 2024-11-30

Total views: 18,150,053

Updated: 11:22, 5 December 2024 (UTC)

Rank	Page title	Views	Daily average	Assessment	Importance
1	Periodic table	390,352	13,011	FA	Top
2	Marie Curie	281,681	9,389	GA	High
3	Harrison Ruffin Tyler	102,807	3,426	C	Low
4	Thermonuclear weapon	95,563	3,185	C	Mid
5	Entropy	92,288	3,076	B	High
6	PH	62,809	2,093	C	Top
7	Amino acid	61,478	2,049	GA	Mid
8	Petroleum	60,948	2,031	C	Mid
9	Atom	60,743	2,024	B	Top
10	Schrödinger equation	60,317	2,010	B	High
11	Fluoride	60,014	2,000	B	High
12	Molecule	57,772	1,925	C	Top
13	Rayon	57,603	1,920	C	Low
14	Protein	57,412	1,913	GA	High
15	Vitamin D	56,626	1,887	B	Mid
16	Lithium-ion battery	56,581	1,886	C	Low
17	Smelling salts	55,282	1,842	C	Low
18	Second law of thermodynamics	54,406	1,813	C	Top
19	Mole (unit)	53,353	1,778	C	Top
20	Steel	51,866	1,728	GA	High
21	Chemistry	48,726	1,624	B	Top
22	Michael Faraday	48,335	1,611	B	Top
23	Chemical element	46,953	1,565	C	Top
24	Electron	43,892	1,463	FA	High
25	Plastic	41,593	1,386	B	High
26	Cyanide	41,366	1,378	B	High
27	Musk	40,853	1,361	Start	Mid
28	Gasoline	40,535	1,351	B	Mid
29	Metal	40,529	1,350	B	Top
30	Steroid	39,840	1,328	C	Mid
31	Bronze	39,830	1,327	C	Mid
32	Tobacco	39,780	1,326	B	Low
33	Covalent bond	39,518	1,317	B	High
34	Specific heat capacity	38,382	1,279	C	High
35	Brass	38,166	1,272	B	Mid
36	Ernest Rutherford	36,712	1,223	B	High
37	Proton	36,178	1,205	C	Top
38	Polymer	35,727	1,190	B	High
39	Isotope	35,273	1,175	C	High
40	Ineos	34,386	1,146	C	Mid
41	Diesel fuel	33,815	1,127	C	Mid
42	Corticosteroid	33,647	1,121	C	Low
43	Ion	33,467	1,115	B	Top
44	Avogadro constant	33,295	1,109	GA	High
45	Lye	33,032	1,101	Start	Low
46	First law of thermodynamics	32,950	1,098	B	Top
47	Group (periodic table)	32,247	1,074	C	High
48	Maillard reaction	32,246	1,074	C	Low
49	Jack Parsons	31,899	1,063	FA	Low
50	Bitumen	31,767	1,058	B	Low
51	Fritz Haber	31,689	1,056	C	High
52	Bleach	31,523	1,050	C	Mid
53	Surface tension	31,275	1,042	C	Mid
54	Aerogel	31,102	1,036	B	High
55	Fire	31,093	1,036	C	Top
56	Per- and polyfluoroalkyl substances	31,009	1,033	C	Mid
57	Ester	30,351	1,011	C	High
58	Nicolas Flamel	29,858	995	C	Low
59	Thermodynamics	29,843	994	B	Top
60	Atomic orbital	29,671	989	B	Mid
61	Haber process	29,440	981	B	High
62	Nanotechnology	29,400	980	B	High
63	Polyethylene	29,222	974	B	High
64	Distillation	29,131	971	B	High
65	Lithium iron phosphate battery	29,117	970	C	Mid
66	Enthalpy	29,011	967	C	Top
67	Liquefied petroleum gas	28,945	964	C	Mid
68	Hydrocarbon	28,940	964	C	High
69	Novichok	28,881	962	C	Low
70	Soap	28,849	961	B	High
71	Pewter	28,847	961	C	Low
72	Dmitri Mendeleev	28,828	960	B	Top
73	Dry ice	28,784	959	B	Mid
74	Redox	28,783	959	C	Top
75	Classical element	28,777	959	C	Mid
76	Alcohol intoxication	28,442	948	B	Mid
77	Vantablack	28,216	940	C	Low
78	Cement	28,180	939	B	Low
79	Gibbs free energy	27,798	926	B	Top
80	Thermite	27,704	923	C	Mid
81	Solid-state battery	27,682	922	C	Low
82	Crystal	27,638	921	B	High
83	Alchemical symbol	27,530	917	List	Low
84	Electric battery	27,470	915	C	Mid
85	Organic compound	27,353	911	C	Top
86	Lyocell	26,377	879	B	Low
87	Fuel cell	26,359	878	B	Mid
88	Alum	26,322	877	B	High
89	Ether	25,936	864	B	High
90	Antoine Lavoisier	25,929	864	B	High
91	Salt (chemistry)	25,908	863	C	High
92	Organic chemistry	25,781	859	B	Top
93	Paracelsus	25,345	844	B	High
94	High-fructose corn syrup	25,280	842	B	Low
95	Chromatography	25,233	841	B	High
96	Molar mass	24,694	823	C	High
97	Saturated fat	24,694	823	B	High
98	Amine	24,665	822	C	High
99	Van der Waals force	24,488	816	C	High
100	Octane rating	24,198	806	B	Low
101	Wave function	24,057	801	C	Mid
102	Chemical formula	23,883	796	C	High
103	Linus Pauling	23,865	795	B	Top
104	Chelation	23,849	794	C	Mid
105	Cast iron	23,764	792	C	Mid
106	Electrolyte	23,568	785	C	Mid
107	Web of Science	23,513	783	C	Low
108	Aqua regia	23,403	780	C	Mid
109	Cloud	23,342	778	GA	Low
110	Phosphate	23,200	773	C	Top
111	Bauxite	23,148	771	C	Mid
112	Chemical substance	22,904	763	B	Top
113	Pitch (resin)	22,894	763	C	Low
114	Standard temperature and pressure	22,818	760	B	High
115	Acid	22,710	757	C	Top
116	Hydrogen bond	22,681	756	B	High
117	Tannin	22,461	748	C	High
118	Chemical reaction	22,443	748	C	Top
119	Electron configuration	22,309	743	C	Top
120	Extended periodic table	22,290	743	B	Low
121	Polylactic acid	22,282	742	C	Low
122	Biochemistry	22,247	741	C	High
123	Corrosion	22,061	735	B	Mid
124	Bioluminescence	22,045	734	GA	Low
125	Paraffin wax	21,716	723	C	High
126	Heinrich Mückter	21,709	723	Start	Low
127	Electronegativity	21,529	717	B	High
128	Shea butter	21,372	712	Start	Low
129	Pharmaceutical industry	21,334	711	B	Mid
130	Brine	21,322	710	C	Low
131	Raman spectroscopy	21,234	707	C	Low
132	Antifreeze	21,222	707	B	Mid
133	Ketone	21,174	705	B	High
134	Ionic bonding	21,024	700	C	High
135	Pauli exclusion principle	20,976	699	B	Mid
136	Phases of ice	20,791	693	C	High
137	Radical (chemistry)	20,681	689	C	High
138	Tar	20,677	689	C	Mid
139	John Dalton	20,614	687	B	Top
140	Alcohol (chemistry)	20,613	687	B	Top
141	Alloy	20,554	685	C	High
142	Sublimation (phase transition)	20,541	684	C	High
143	Electrolysis	20,521	684	C	High
144	Fiberglass	20,456	681	C	Low
145	Surfactant	20,318	677	C	Mid
146	Depleted uranium	20,248	674	B	Low
147	Hard water	20,227	674	C	Mid
148	Ice	20,217	673	GA	High
149	Carboxylic acid	20,186	672	C	Top
150	Gas	20,107	670	B	Top
151	Chemical bond	20,068	668	C	Top
152	Fat	19,992	666	B	High
153	Chemical compound	19,902	663	B	Top
154	Titration	19,871	662	B	Top
155	Humphry Davy	19,699	656	B	High
156	Terpene	19,695	656	B	Mid
157	Free base	19,584	652	Start	Mid
158	Sodium-ion battery	19,518	650	C	Low
159	Alkaloid	19,452	648	B	Top
160	Colloid	19,452	648	B	High
161	Crystal structure	19,180	639	B	High
162	Heat capacity	19,058	635	Start	High
163	Emulsion	18,991	633	C	Mid
164	Alkali	18,969	632	Start	High
165	Liquid nitrogen	18,926	630	C	High
166	High-performance liquid chromatography	18,924	630	B	Low
167	Transition metal	18,893	629	B	High
168	Lead–acid battery	18,858	628	C	Mid
169	Arrhenius equation	18,828	627	C	Mid
170	Portland cement	18,826	627	B	Low
171	Bredt's rule	18,763	625	Start	Mid
172	Nernst equation	18,690	623	C	High
173	Pig iron	18,614	620	C	Low
174	Oil	18,582	619	C	Mid
175	Combustion	18,556	618	C	High
176	Polychlorinated biphenyl	18,405	613	B	High
177	Safety data sheet	18,296	609	C	High
178	Liquid	18,223	607	B	Top
179	Synthetic diamond	18,194	606	FA	Mid
180	Oxidizing agent	18,035	601	Start	Top
181	Molar concentration	18,028	600	C	High
182	Activated carbon	18,018	600	C	Mid
183	Mass spectrometry	18,002	600	B	High
184	Nonmetal	17,943	598	GA	Mid
185	Volatile organic compound	17,841	863	C	Low
186	Smoking	17,840	863	B	Low
187	Electrolysis of water	17,797	593	C	Mid
188	Valence electron	17,768	592	C	High
189	Electron shell	17,673	589	C	High
190	Spectroscopy	17,657	588	C	Top
191	Chlorofluorocarbon	17,477	582	B	High
192	Trans fat	17,466	582	B	Mid
193	Colored gold	17,420	580	C	Mid
194	Rust	17,343	578	C	High
195	Catalysis	17,279	575	C	Top
196	Oxidation state	17,240	574	B	High
197	Aldehyde	17,167	572	C	High
198	Hydrolysis	17,028	567	C	Top
199	Composition of the human body	16,961	565	C	Low
200	Alkane	16,956	565	B	Top
201	Nitrate	16,765	558	C	High
202	Sulfate	16,679	555	C	High
203	Relative density	16,662	555	C	Mid
204	Pyrolysis	16,662	555	C	Mid
205	Materials science	16,501	550	B	High
206	NileRed	16,407	546	Start	NA
207	Nobel Prize in Chemistry	16,379	545	B	High
208	Lubricant	15,935	531	C	Low
209	Wrought iron	15,897	529	C	Mid
210	Anthocyanin	15,881	529	B	Mid
211	MDPI	15,880	529	C	Low
212	Hydroxide	15,843	528	C	Top
213	Solubility	15,836	527	C	High
214	Density functional theory	15,811	527	C	High
215	Nickel–metal hydride battery	15,674	522	C	Low
216	Atomic mass	15,672	522	C	Top
217	History of atomic theory	15,656	521	GA	Top
218	GHS hazard pictograms	15,533	517	List	Mid
219	Phthalates	15,461	515	B	Mid
220	Fullerene	15,398	513	B	High
221	Briggs–Rauscher reaction	15,363	512	C	Mid
222	IUPAC nomenclature of organic chemistry	15,339	511	B	High
223	Piranha solution	15,323	510	C	Low
224	Lithium polymer battery	15,316	510	C	Low
225	Hazard symbol	15,302	510	Start	High
226	Fourier-transform infrared spectroscopy	15,295	509	C	High
227	Creosote	15,236	507	B	Low
228	6061 aluminium alloy	15,225	507	C	Low
229	Tobacco smoking	15,212	507	B	High
230	Cyanoacrylate	15,182	506	C	Mid
231	Acrylic paint	15,123	504	C	Low
232	Polyphenol	15,067	502	Start	Mid
233	Flavonoid	15,029	500	C	Mid
234	Stoichiometry	14,993	499	C	High
235	Galvanization	14,938	497	Start	Mid
236	Paint	14,865	495	C	Low
237	Bicarbonate	14,749	491	C	High
238	Angstrom	14,741	491	C	Mid
239	Chloride	14,707	490	C	High
240	Heat of combustion	14,675	489	C	High
241	Poison	14,670	489	B	High
242	Aufbau principle	14,596	486	C	High
243	Enantiomer	14,575	485	C	High
244	Vulcanization	14,524	484	C	Mid
245	Chemical engineering	14,495	483	B	Mid
246	Monosaccharide	14,484	482	C	High
247	Melting point	14,477	482	C	High
248	Liquid crystal	14,436	481	B	Mid
249	Jennifer Doudna	14,428	480	B	Mid
250	Lead glass	14,354	478	B	Mid
251	Flash point	14,127	470	C	Mid
252	List of battery types	14,043	468	List	Mid
253	Functional group	13,962	465	C	Top
254	GHS hazard statements	13,962	465	List	Mid
255	Acid dissociation constant	13,916	463	B	High
256	Match	13,903	463	C	Mid
257	Chemical weapons in World War I	13,843	461	C	Low
258	Solvent	13,832	461	B	High
259	Chirality (chemistry)	13,828	460	C	Top
260	VSEPR theory	13,785	459	C	High
261	Isomer	13,744	458	C	High
262	Chemical symbol	13,683	456	List	Mid
263	Liquid oxygen	13,656	455	C	High
264	Hygroscopy	13,596	453	C	High
265	Gas chromatography	13,574	452	B	Mid
266	X-ray crystallography	13,479	449	C	High
267	Wax	13,469	448	C	Mid
268	Oxalate	13,374	445	Start	Mid
269	Arsenic poisoning	13,300	443	B	Low
270	Aliphatic compound	13,286	442	Start	Mid
271	Tear gas	13,196	439	C	Mid
272	Valence (chemistry)	13,194	439	C	High
273	Paramagnetism	13,191	439	B	Mid
274	Stereoisomerism	13,131	437	C	High
275	Phthalocyanine Green G	13,095	436	Start	Low
276	Smelting	13,054	435	C	Low
277	Third law of thermodynamics	12,947	431	C	Top
278	Xylene	12,879	429	C	Mid
279	Robert Boyle	12,875	429	B	Mid
280	Fogbank	12,858	428	Start	Low
281	Scientific law	12,842	428	C	High
282	Island of stability	12,789	426	FA	Low
283	Aromatic compound	12,756	425	C	High
284	Lennard-Jones potential	12,738	424	C	Mid
285	Water vapor	12,726	424	B	Mid
286	Carbon cycle	12,697	423	B	High
287	Solid	12,688	422	C	Top
288	CAS Registry Number	12,686	422	Start	Mid
289	Solution (chemistry)	12,656	421	C	Top
290	Chemical weapon	12,640	421	C	Mid
291	Reactive oxygen species	12,600	420	C	Mid
292	Jabir ibn Hayyan	12,500	416	B	Mid
293	Cytochrome P450	12,481	416	B	Mid
294	Vapour pressure of water	12,462	415	Start	Low
295	Conservation of mass	12,388	412	C	High
296	Metallic hydrogen	12,334	411	B	Low
297	Petrochemical	12,291	409	Start	High
298	Tetrahedral molecular geometry	12,233	407	C	High
299	Buffer solution	12,165	405	C	High
300	Abu Bakr al-Razi	12,160	405	C	Mid
301	Aerosol	12,127	404	C	Mid
302	Heavy metals	12,116	403	B	Mid
303	Ultraviolet–visible spectroscopy	12,113	403	C	Mid
304	Base (chemistry)	12,068	402	C	Top
305	Nuclear magnetic resonance spectroscopy	12,005	400	B	High
306	Simplified Molecular Input Line Entry System	11,992	399	Start	Low
307	Block (periodic table)	11,976	399	C	Low
308	Saponification	11,938	397	C	Mid
309	Ammonium	11,909	396	C	High
310	Aqueous solution	11,891	396	Start	High
311	Le Chatelier's principle	11,847	394	C	High
312	Metallic bonding	11,840	394	C	High
313	Oxygen toxicity	11,833	394	FA	Low
314	Alkene	11,813	393	C	High
315	Period (periodic table)	11,807	393	C	High
316	Fischer–Tropsch process	11,805	393	B	Mid
317	Heterocyclic compound	11,767	392	Start	High
318	Biological hazard	11,765	392	C	High
319	Alexander Shulgin	11,703	390	GA	Low
320	Amide	11,696	389	C	Top
321	Charles Sanders Peirce	11,690	389	B	Low
322	Alkaline battery	11,646	388	C	Mid
323	Centrifuge	11,611	387	C	Mid
324	Zeroth law of thermodynamics	11,604	386	C	Top
325	Globally Harmonized System of Classification and Labelling of Chemicals	11,596	386	C	Mid
326	Adhesive	11,592	386	C	Mid
327	Fractional distillation	11,550	385	C	Mid
328	Evaporation	11,533	384	C	High
329	Button cell	11,533	384	C	Low
330	Phlogiston theory	11,520	384	B	Mid
331	Discovery of chemical elements	11,440	381	C	Mid
332	Chemical polarity	11,417	380	C	High
333	Flame	11,320	377	B	High
334	Eutectic system	11,237	374	Start	Low
335	Orbital hybridisation	11,203	373	C	High
336	Lighter	11,180	372	Start	Unknown
337	Gram	11,151	371	Start	High
338	Standard enthalpy of formation	11,085	369	C	High
339	Coal tar	11,054	368	C	Mid
340	Thermoplastic polyurethane	11,045	368	C	Low
341	Solubility table	11,043	368	List	Mid
342	Chirality	11,038	367	B	High
343	Carbon black	11,024	367	C	Mid
344	Periodic trends	10,964	365	C	Mid
345	Dipole	10,957	365	Start	Mid
346	Joseph Priestley	10,928	364	FA	Mid
347	Chemical potential	10,870	362	C	Mid
348	Ideal gas	10,855	361	C	High
349	Allotropy	10,829	360	C	Low
350	Standard electrode potential (data page)	10,822	360	List	Mid
351	Mebendazole	10,809	360	C	Mid
352	Ligand	10,808	360	C	High
353	Acetate	10,783	359	C	High
354	Hydrogenation	10,748	358	B	High
355	Glenn T. Seaborg	10,743	358	GA	High
356	Alpha decay	10,741	358	C	Mid
357	Anodizing	10,736	357	C	Mid
358	Carbonate	10,720	357	C	High
359	Iodine clock reaction	10,716	357	C	Mid
360	Weathering steel	10,714	357	C	Low
361	Savitzky–Golay filter	10,684	356	C	Low
362	Inorganic compound	10,675	355	Start	High
363	Mustard oil	10,669	355	Start	Low
364	Polycyclic aromatic hydrocarbon	10,610	353	B	High
365	Joachim Sauer	10,580	352	Start	Low
366	Elephant's toothpaste	10,571	352	Start	Mid
367	Allotropes of carbon	10,563	352	C	Mid
368	Enthalpy of vaporization	10,552	351	C	High
369	Chemical warfare	10,525	350	C	Mid
370	Cis–trans isomerism	10,498	349	C	High
371	Intermolecular force	10,466	348	C	Top
372	Galvanic corrosion	10,462	348	C	Mid
373	Detergent	10,336	344	Start	Mid
374	Stephanie Kwolek	10,273	342	B	Mid
375	Exothermic reaction	10,166	338	C	High
376	Refrigerant	10,105	336	C	Low
377	Electron affinity	10,087	336	Start	Mid
378	Pulp (paper)	10,064	335	C	Low
379	List of Nobel laureates in Chemistry	10,015	333	FL	High
380	Differential scanning calorimetry	9,994	333	B	Mid
381	Litmus	9,992	333	Start	Mid
382	Carbon sequestration	9,983	332	B	Mid
383	Inert gas	9,966	332	Start	Mid
384	Coordination complex	9,946	331	B	High
385	Anode	9,944	331	C	Mid
386	Heat capacity ratio	9,940	331	Start	Low
387	Thin-layer chromatography	9,940	331	C	High
388	Chemical nomenclature	9,906	330	B	Top
389	Thermoplastic	9,894	329	C	Mid
390	Lewis structure	9,876	329	B	Mid
391	Toxicology	9,818	327	C	Mid
392	Yellowcake	9,794	326	Start	Mid
393	Salinity	9,793	326	C	Low
394	Alkyl group	9,793	326	Start	Mid
395	Flame test	9,767	325	Start	Low
396	Steam	9,767	325	Start	High
397	Material	9,760	325	Start	Mid
398	Iron oxide	9,752	325	Start	Mid
399	Rechargeable battery	9,717	323	C	Low
400	Alexander Borodin	9,716	323	Start	Low
401	List of refrigerants	9,704	323	List	Mid
402	Cathode	9,690	323	C	High
403	Homogeneity and heterogeneity	9,686	322	C	Mid
404	International Union of Pure and Applied Chemistry	9,684	322	GA	Top
405	Lewis acids and bases	9,681	322	Start	High
406	List of largest chemical producers	9,640	321	List	Mid
407	Chemical industry	9,624	320	Start	Mid
408	Peroxide	9,619	320	Start	Mid
409	Reactivity series	9,603	320	C	Mid
410	Macrolide	9,566	318	C	Mid
411	Aromaticity	9,543	318	B	High
412	Disinfectant	9,527	317	C	Low
413	Synthetic rubber	9,524	317	C	Mid
414	Methyl group	9,436	314	C	High
415	Octet rule	9,426	314	Start	High
416	R-410A	9,401	313	B	Mid
417	Galvanic cell	9,390	313	C	Mid
418	Hartree–Fock method	9,377	312	C	High
419	Organophosphate	9,365	312	C	High
420	Particle	9,365	312	C	Top
421	Hydronium	9,338	311	B	High
422	Paraben	9,303	310	C	Mid
423	Hexavalent chromium	9,299	309	B	Mid
424	Oxide	9,292	309	B	High
425	Herbicide	9,286	309	C	High
426	Medium-chain triglyceride	9,275	309	C	Low
427	Quantum chemistry	9,230	307	C	Top
428	Otto Hahn	9,219	307	FA	High
429	Dioxins and dioxin-like compounds	9,208	306	C	Mid
430	Phase diagram	9,168	305	C	Mid
431	Outline of physical science	9,166	305	Start	Low
432	Desiccant	9,164	305	C	Mid
433	Electrode	9,129	304	Start	Low
434	Energy level	9,099	303	Start	High
435	Precipitation (chemistry)	9,043	301	C	High
436	Porphyrin	9,040	301	B	Mid
437	Mixture	9,039	301	Start	Mid
438	Bunsen burner	9,025	300	C	Mid
439	Automotive battery	9,012	300	C	Low
440	Toxin	8,984	299	Start	Mid
441	Azeotrope tables	8,970	299	List	Mid
442	Miscibility	8,899	296	C	Mid
443	Erlenmeyer flask	8,882	296	Start	Low
444	Liquid chromatography–mass spectrometry	8,860	295	B	Mid
445	Sugar alcohol	8,838	294	C	Mid
446	Carbide	8,793	293	B	Mid
447	Thiol	8,753	291	C	High
448	Carbonyl group	8,728	290	C	High
449	Organophosphate poisoning	8,704	290	B	Low
450	Nitrile rubber	8,699	289	C	Low
451	Activation energy	8,696	289	Start	Mid
452	List of benzodiazepines	8,695	289	List	Low
453	Lithium nickel manganese cobalt oxides	8,681	289	C	Low
454	Calcination	8,665	288	Start	Mid
455	Van 't Hoff equation	8,655	288	C	Mid
456	X-ray diffraction	8,638	287	Start	High
457	Odor	8,637	287	C	Low
458	Flare	8,620	287	C	Low
459	Chemical equilibrium	8,617	287	C	High
460	Hypothetical types of biochemistry	8,607	286	C	Low
461	Perovskite (structure)	8,599	286	C	Mid
462	Primordial nuclide	8,593	286	Start	Low
463	Hydrochloride	8,592	286	Stub	Low
464	Food additive	8,556	285	Start	Low
465	Amount of substance	8,551	285	C	High
466	Glass fiber	8,545	284	GA	Mid
467	Membrane potential	8,540	284	C	Low
468	Pipette	8,469	282	Start	Low
469	Molecular orbital theory	8,446	281	C	Mid
470	7075 aluminium alloy	8,444	281	C	Low
471	VRLA battery	8,406	280	C	Low
472	Racemic mixture	8,341	278	C	Mid
473	Sulfite	8,337	277	C	High
474	London dispersion force	8,316	277	Start	Mid
475	Chrome plating	8,303	276	C	Mid
476	Analytical chemistry	8,290	276	C	Top
477	Reaction rate	8,269	275	B	High
478	Electronic band structure	8,262	275	C	Mid
479	Peptide bond	8,235	274	B	High
480	Glow stick	8,229	274	C	Low
481	Petroleum coke	8,229	274	Start	Low
482	Reduction potential	8,222	274	C	High
483	Sodium phosphate	8,214	273	Start	Low
484	Electron paramagnetic resonance	8,214	273	C	Mid
485	List of chemical compounds with unusual names	8,202	273	List	Low
486	Azeotrope	8,179	272	B	Mid
487	Soot	8,173	272	C	Mid
488	Phytochemical	8,169	272	C	Mid
489	Photochromic lens	8,167	272	Start	Low
490	Plastic recycling	8,163	272	C	Low
491	Electrochemical cell	8,160	272	C	High
492	Metal–organic framework	8,139	271	B	Mid
493	Henderson–Hasselbalch equation	8,113	270	C	Mid
494	Frédéric Joliot-Curie	8,112	270	C	High
495	Physical chemistry	8,107	270	C	Top
496	PH meter	8,102	270	B	Mid
497	Saponin	8,097	269	C	Mid
498	Concentration	8,074	269	Start	High
499	Total dissolved solids	8,057	268	C	Mid
500	Azo dye	8,055	268	Start	Mid