I’m having a hard time distinguishing dienes from dienophiles. I thought dienes were just hydrocarbons. (This is from my lecture notes) can someone explain how I can tell the difference if both compounds have elements other than carbon and hydrogen?

Q: Sketch the ultraviolet absorption spectrum of 1,3-Butadiene, matching peaks to electronic…

A:

Q: This class of organic compounds is unsaturated with one or more carbon-carbon triple bonds. O…

A: Alkenes are having carbon carbon double bond and unsaturated compounds. Hence, we can eliminate this…

Q: Hydrocarbon Structure Activity Part I: Hydrocarbon Structures and Names. INSTRUCTIONS: For each row…

A: In this question, we have to fill the given table of the given hydrocarbons.

Q: 14. For the compound represented by the Newman projection below, what is the dihedral angle between…

A: Molecule with non -zero dipole moment are called polar molecule, and the molecule with zero dipole…

Q: The bond dissociation energy to break 2 C-C bond(s) in 1 mole of glycerol (HOCH2CH(OH)CH2OH, see…

A: According to the given table, the carbon-carbon bond dissociation energy is = 346 kJ/mol The bond…

Q: Why do the trans- and cis- dichloroethenes have different melting and boiling points?

A: The objective of the question is to find the reason for different melting and boiling points for…

Q: 4. structure and bonding) a. Draw the Lewis structure of l3-, including formal charges, and predict…

A: Valence electrons are combine together to form Lewis dot structure.  Where shape of the molecule can…

Q: Draw the base adenine from RNA and DNA. • You do not have to consider stereochemistry. • You do not…

A: DNA and RNA are polymer of nucleotides. A nucleotide is formed by three structural units:Pentose…

Q: Completar Sustituyendo los Grupos R, Ar y X Substitución 1°RX + exc NH, SN2 3. RNH3*X OH-, RNH, a.

A: Preparation of amines can be done using ammonia and alkyl halides as the reactants. This reaction…

Q: These two different C2H6O compounds are called structural (or constitutional) isomers - compounds…

A: Answer is explained below

Q: Select the bonds in the 3D representation of methyl urethane below that are multiple bonds. (Hint:…

A:

Q: Using your general knowledge of periodic trends in electronegativity, predict whether the C=O bond…

A:

Q: QUESTION 7 Which of the following is not true about anti-aromatic molecules? O Anti-aromatic…

A:

Q: We have thus far determined the single bond connectivity for (CH,),CO as: H Н—с—с-—с—н H H There are…

A: Given structure is :

Q: In the following acid - base reactions, a) Draw Lewis structures of the reactants and the products.…

A: The objective of the question is to identify species are acting as-Lewis StructureResonance…

Q: Find three different molecular structures, isomers, with this formula. (Hint: Remember the C rule…

A: Since we know that molecules having same molecular formula but different arrangement of atoms is…

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.