Nomenclature of Inorganic Chemistry Compounds

Posted by on Feb 11, 2025 in Chemistry | 0 comments

Oxides: Compounds formed by the reaction of oxygen with any other element: X2On

  • Systematic Nomenclature: prefix + name of element + oxide
  • Stock Nomenclature: name of element + oxide + (valence of element in Roman numerals)

Examples:

  • Sodium oxide: Na2O
  • Trinickel dioxide: Ni2O3
  • Lead monoxide: PbO
  • Dichloro heptaoxide: Cl2O7
  • Sulfur dioxide (sulfur (IV) oxide): S2O4 = SO2
  • Chlorine (V) oxide: Cl2O5
  • Diphosphorus pentaoxide: P2O5
  • Calcium oxide: CaO = Ca2O2

Hydrides: Compounds of hydrogen with a metallic element or

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Photosynthesis, Food Webs, Stimuli, and Separation Methods

Posted by on Feb 10, 2025 in Chemistry | 0 comments

Photosynthesis

La fotosíntesi és un procés químic que converteix el diòxid de carboni en compostos orgànics, especialment utilitzant l’energia de la llum solar.[1] La fotosíntesi es produeix en les plantes.

Food Webs

La xarxa tròfica és el conjunt de cadenes tròfiques o alimentàries d’un ecosistema. És a dir, és l’expressió del conjunt de relacions alimentàries que hi ha dintre d’un ecosistema, una manera de representar com circula la matèria i l’energia entre els seus membres.

Stimuli

Anomenem
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Concrete Mix Design and Application

Posted by on Feb 10, 2025 in Chemistry | 0 comments

Cement

No need to seal before or during direction of work changes. Use water-cured cement with pH > 7 without substitutes. Chloride content should follow arid class 0.81.250.25 (0.40.33) without clay particles. Floating soft, sulfur, and chloride exposure should be within limits. Use CEM I, IIa, IIb (blue). Fineness should be 6 MnC for rolled types, and III’s, IV’s with 0-10 M or limestone I, II0’s and 15 MC I, II’s. V2/P/6 Coef = v1 + d3 .. d3 + y = 100Rd / D.

Water

Use water with a pH between

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Understanding Steel Transformations, Alloys, and Defects

Posted by on Feb 10, 2025 in Chemistry | 0 comments

Steel Transformations and Properties

Annealing and Grain Size

Annealing is a crucial process in steel transformation, generally employed to achieve a smaller grain size. This, in turn, lowers metal features. Anisotropy is a general property where physical properties like elasticity, temperature, conductivity, and velocity of spreading light vary depending on the direction in which they are examined.

Alloys and Overheated Steel

An alloy is a system consisting of several elements, with at least one being

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Ions, Compounds, and Chemical Formulas Explained

Posted by on Feb 10, 2025 in Chemistry | 0 comments

Ions: Charged Particles

Ion: A charged particle composed of an atom that has gained or lost electrons. Atoms are neutral.

Cations: Positive Ions

Cation: A positively charged ion due to the loss of electrons from a neutral atom (e.g., Na+).

Na Atom11 Protons11 Electrons
Na+11 Protons10 Electrons

Anions: Negative Ions

Anion: A negatively charged ion due to an increase in the number of electrons (e.g., Cl–).

Cl Atom17 Protons17 Electrons
Cl–17 Protons18 Electrons

Chemical Compounds and Formulas

Ionic Compound:

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Inorganic Formulation and Chemical Reactions

Posted by on Feb 9, 2025 in Chemistry | 0 comments

Inorganic Formulation

Valences and Common Elements:

  • +1: H (+/-1), Li, Na, K, Rb, Cs, Ag
  • +2: Be, Mg, Ca, Sr, Ba, Ra, Zn, Cd
  • +3: B, Al, Tl, Ga, Bi
  • +1, +2: Cu, Hg
  • +1, +3: Au
  • +2, +3: Fe, Co, Ni, Mn (+4, +7), Cr (+6), Mo (+6)
  • +2, +4: Sn, Pb, Pt
  • +/-4: C (+2), Si
  • +/-3, +5: N (+1), P (+1), As, Sb
  • +/-2, +4, +6: O (always -2), S, Se, Te
  • +/-1, +3, +5, +7: F (always -1), Cl, Br, I

Nomenclature Codes:

1-Mono, 2-Di, 3-Tri, 4-Tetra, 5-Penta, 6-Hexa, 7-Hepta…

Suffixes:

Hypo…ous / -ic, …ous / -ic, …ic / -ate, Per…ic/-

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