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  2. inorganic chemistry - What is the definition of organic compounds...

    chemistry.stackexchange.com/questions/6690/what-is-the-definition-of-

    According to the definition of organic compounds on Wikipedia: An organic compound is any member of a large class of gaseous, liquid, or solid chemical compounds whose molecules contain carbon. Carbonates, simple oxides of carbon, and cyanide molecules do have carbon, but they are not regarded as organic. The same Wikipedia article on organic ...

  3. I have given the most basic definition (properties) of an element, molecule, compound or mixture. Element: A substance which cannot be broken down chemically is called elements. All substances listed in Periodic Table are elements. Molecule: Two or more atoms or elements combined together are called a molecule. Compound:

  4. solutions - What is an equivalent? - Chemistry Stack Exchange

    chemistry.stackexchange.com/questions/7833

    The mass of an equivalent is called its equivalent weight. In a more formal definition, the equivalent is the amount of a substance needed to do one of the following: react with or supply one mole of hydrogen ions (HX+ H X +) in an acid-base reaction. react with or supply one mole of electrons in a redox reaction.

  5. What is the meaning of "equivalent weight" and its formula?

    chemistry.stackexchange.com/questions/44148

    Definition of Equivalent Weight (also known as equivalent mass): The simplest definition of equivalent mass I can think of is the following: The mass of a compound which will combine with 8g of oxygen or 1g of hydrogen is said to be the equivalent weight of the compound. Lets take an example, $\ce{2Ca + O2 -> 2CaO}$

  6. Pseudo chiral centre - Chemistry Stack Exchange

    chemistry.stackexchange.com/questions/139094

    Charlie. 294 1 3 10. 5. Suppose you have the following compound,4-Methylhepta-2,5-diene.The central carbon atom-C 4 is pseudo chiral because it is chiral only when the stereo centers at C2-C3 and C5-C6 are of different configuration other wise it is not chiral. – Adithya.

  7. Difference between any arene and an aromatic compound?

    chemistry.stackexchange.com/questions/19284

    Add a comment. Arene. Aromatic Compounds. The molecule is cyclic (a ring of atoms) The molecule is planar (all atoms in the molecule lie in the same plane) The molecule is fully conjugated (p orbitals at every atom in the ring) The molecule has 4n + 2 4 n + 2 π electrons (n = 0 n = 0 or any positive integer)*. Examples (non-benzenoids):

  8. How can I tell whether or not a molecule is planar?

    chemistry.stackexchange.com/questions/63353

    8. I think these general rules work: If there is an spX3 s p X 3 hybridized carbon (or nitrogen), the molecular is NOT planar. 2) If there are no spX3 s p X 3 hybridized carbons (or nitrogens), and there is only one spX2 s p X 2 hybridized atom (carbon or nitrogen), it will be planar. 3) If there are no spX3 s p X 3 hybridized atoms, and there ...

  9. Why are "vinylic" and "allylic" carbons named so?

    chemistry.stackexchange.com/questions/176431/why-are-vinylic-and-allylic...

    allyl comes from the scientific name for garlic, Allium sativum. In 1844, Theodor Wertheim isolated an allyl derivative from garlic oil and named it "Schwefelallyl". vinyl comes from Latin vinum = "wine", and the Greek word "hylos" 'υλος (matter or material), because of its relationship with ethyl alcohol. By clicking “Post Your Answer ...

  10. Are all ionic compounds salts? - Chemistry Stack Exchange

    chemistry.stackexchange.com/questions/86399

    Interestingly, IUPAC states that a "salt" is "a chemical compound consisting of an assembly of cations and anions". Under this definition, all ionic compounds are salts, and all salts are ionic compounds. Therefore, something like sodium hydroxide ($\ce{Na+OH-}$, definitely an ionic compound) could actually be correctly called a salt.

  11. 33. My textbooks states the Drago's rule in inorganic chemistry as follows: The more electronegative atom prefers the orbital having more p character, and lone-pairs or less electronegative elements prefer such orbitals, as have more s character. Now, according to hybridization, sp3d = sp2 + pd, sp3d2 = sp + p2d2, sp3d3 = sp + p2d3.