What is the definition of double bond in chemistry?

Definition of double bond : a chemical bond in which two pairs of electrons are shared by two atoms in a molecule — compare single bond, triple bond.

What does two double bonds mean?

A double bond is a type of chemical bond in which two electron pairs are shared between two atoms. This type of bond involves four bonding electrons between atoms, rather than the usual two bonding electrons involved in a single bond. Because of the large number of electrons, double bonds tend to be reactive.

What is a double bond quizlet?

Double bond. a covalent bond produced by sharing two pairs of electrons between two atoms. Ductility.

What is a double bond isomer?

The isomer with similar substituents on the same side of the double bond is called cis, a Latin stem meaning “on this side.” The isomer in which similar substituents are across from each other, is called trans, a Latin stem meaning “across.” The cis isomer of 2-butene, for example, has both CH3 groups on the same side …

Why is double bond shorter than single?

Double bonds are shorter than single bonds because double bonds are stronger and therefore pull the electrons closer together in the two elements which decreases the length of the bond.

How do you find double bonds?

DBE = UN = PBoR = C – (H/2) + (N/2) +1, where: C = number of carbon atoms, H = number of hydrogen and halogen atoms, and N = number of nitrogen atoms. One DBE = one ring or one double bond.

Which molecule contains a double bond?

Alkenes
Alkenes are hydrocarbons which contain carbon-carbon double bonds. Their general formula is CnH2n for molecules with one double bond (and no rings). Alkenes are also known as olefins, after the original name for ethene, olefiant gas.

What type of bonds form a double bond?

In chemistry, a double bond is a covalent bond between two atoms involving four bonding electrons as opposed to two in a single bond. Double bonds occur most commonly between two carbon atoms, for example in alkenes.

What is a double bond two covalent bonds between adjacent molecules?

organic compounds conditions, adjacent atoms will form multiple bonds with each other. A double bond is formed when two atoms use two electron pairs to form two covalent bonds; a triple bond results when two atoms share three electron pairs to form three covalent bonds.

Why does Stereoisomerism occur in alkenes?

Stereoisomers are defined as molecules with the same structural formula but a different arrangement of the atoms in space. Owing to the restricted rotation around a C=C double bond it is possible for alkenes to exist as stereoisomers if there are two different groups attached to each carbon atom in the double bond.

Is a double bond a Stereocenter?

The carbon atoms that form the C=C double bond in 2-butene are called stereocenters or stereogenic atoms. A stereocenter is an atom for which the interchange of two groups converts one stereoisomer into another. The carbon atoms in the C=C double bond in 2-butene, for example, are stereocenters.

How is a double bond formed?

A double bond is formed when two atoms share two pairs of electrons. The sharing of two electrons is known as a covalent bond. Double bonds are both stronger and shorter than single bonds.

What does a double bond mean in chemistry?

Double bonds are formed when p orbitals between two atoms overlap. If the atom were twisted, these orbitals would no longer overlap and the bond would be broken. The double carbon-carbon bond prevents the free rotation of atoms in the molecules. These two molecules have the same atoms but are different molecules.

What compounds contain a double bond?

Double bonds are denoted by two parallel dashes; ex: C=C. Some examples of compounds with double bonds include alkenes such as ethylene , propene , carbonyl compounds (C=O), azo compounds (N=N), imines (C=N), and sulfoxides (S=O).

What are some examples of double bonds in chemistry?

Acids (in the order COOH,C (O)O 2 H; then their S and Se derivatives,followed by sulfonic,sulfinic,selenonic,etc.,phosphonic,arsonic,etc.,acids)

What is an example of a double bond?

A simple example of a compound with a double bond is ethylene, from which polyethylene , a very common plastic is made: Another example is beta carotene. It has a lot of double bonds.