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2. Hume-Rothery rules - Wikipedia

   en.wikipedia.org/wiki/Hume-Rothery_rules

   [5] [6] The solute and solvent should have similar electronegativity. [7] Valency factor: two elements should have the same valence. The greater the difference in valence between solute and solvent atoms, the lower the solubility.

3. Valence (chemistry) - Wikipedia

   en.wikipedia.org/wiki/Valence_(chemistry)

   Thus, each sulfur atom is hexavalent or has valence 6, but has oxidation state +5. In the dioxygen molecule O 2, each oxygen atom has 2 valence bonds and so is divalent (valence 2), but has oxidation state 0. In acetylene H−C≡C−H, each carbon atom has 4 valence bonds (1 single bond with hydrogen atom and a triple bond with the other ...

4. Atomicity (chemistry) - Wikipedia

   en.wikipedia.org/wiki/Atomicity_(chemistry)

   Atomicity is the total number of atoms present in a molecule of an element. For example, each molecule of oxygen (O 2) is composed of two oxygen atoms.Therefore, the atomicity of oxygen is 2.

5. Equivalent weight - Wikipedia

   en.wikipedia.org/wiki/Equivalent_weight

   In chemistry, equivalent weight (also known as gram equivalent [1] or equivalent mass) is the mass of one equivalent, that is the mass of a given substance which will combine with or displace a fixed quantity of another substance.

6. Comproportionation - Wikipedia

   en.wikipedia.org/wiki/Comproportionation

   4 + 3 MnSO 4 + 2 H 2 O → 5 MnO 2 + K 2 SO 4 + 2 H 2 SO 4. In selenium chemistry: 15 Se + SeCl 4 + 4 AlCl 3 → 2 Se 8 [AlCl 4] 2. In the Claus process, two gaseous compounds of sulfur comproportionate in the presence of a catalyst to give elemental sulfur: 2 H 2 S + SO 2 → 3 S + 2 H 2 O. In halogen chemistry: IO 3 − + 5 I − + 6 H + → ...

7. Pet Supplies Retailer Chewy's Q3 Performance Builds On Q2 ...

   www.aol.com/pet-supplies-retailer-chewys-q3...

   On Wednesday, Chewy Inc. (NYSE:CHWY) reported a third-quarter adjusted EPS of $0.20, up 33.3% year-over-year, compared to the consensus of $0.08. The retailer of pet supplies reported sales of $2. ...

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9. Praseodymium (III,IV) oxide - Wikipedia

   en.wikipedia.org/wiki/Praseodymium(III,IV)_Oxide

   Pr 6 O 11 adopts a cubic fluorite crystal structure, measured by XRD, TEM and SEM methods. [3] [5] It can be considered an oxygen deficient form of praseodymium(IV) oxide (PrO 2), with the Pr ions being in a mixed valency state Pr(III) and Pr(IV). [5] This characteristic is what gives the oxide its many useful properties for its catalytic activity.