It is propyne
The condensed formula for 2,2,3-trimethylpentane is CH₃C(CH₃)₂CH(CH₃)₂CH₃.
1. hexane: CH3-CH2-CH2-CH2-CH2-CH32. 3-methylpentane: CH3-CH2-CH(CH3)-CH2-CH33. 2-methylpentane: CH3-CH(CH3)-CH2-CH2-CH34. 2,2-dimethylbutane: CH3-C(CH3(CH3))-CH2-CH3
there are 4 possibilities 1- CH3-CH2-C=CH one triple bond 2-CH3-C=C-CH3 one triple bond 3-CH2=CH-CH=CH2 two double bonds 4-CH2=C=CH-CH3 two double bonds
CH2CH2CH3 is NOT a compound name, but a 'Propyl' functional group , which would be attached to a larger molecule. Propane is CH3-CH2-CH3 Propene is CH2=CH-CH3 Propyne is HC=C-CH3 ( A triple bond). The CH2CH2CH2, is written as R-CH2CH2CH3 , the propyl functional group and 'R' the rest of the molecule.
Addition Reactions - involve the conversion of a π bond into 2 new σ bonds General form: A + B → C Eg. CH3-CH=CH-CH3 + HCl → CH3-CH2-CHCl-CH3 Substitution Reactions - involve the no change in bonding - one σ bond replaces another General form: A + B → C + D Eg. CH3-CHBr-CH2-CH3 + KOH(aq) → CH3-CH(OH)-CH2-CH3 + KBr Elimination Reactions - reverse of addition, in that two σ bonds are lost, replaced by a new π bond General form: A → B + C Eg. CH3-CH(OH)-CH2-CH3 -- conc. H2SO4 --> CH3-CH=CH-CH3 + H2O Rearrangement / Isomerisation - process in which a single substance changes structure, A → B. Such a reaction may involve changes in bond / type, though this is not necessary. These reactions are comparatively rare. Eg. CH3-CH2-CH2-C(OH)=CH2 → CH3-CH2-CH2-C(=O)-CH3 These are the four "prototypical" reactions, though several others which can be categorised as one of these are generally referred to by other names. Eg. CH3-CH(OH)-CH3 -- H2SO4 / K2Cr2O7 --> CH3-C(=O)-CH3 could be described as an elimination reaction, but would usually be called an oxidation Eg. CH3-C(=O)-CH3 -- 1. LiAlH4 2. H^+ / H2O --> CH3-CH(OH)-CH3 could be described as a (nucleophilic) addition reaction, but would usually be called a reduction Eg. CH3-C(=O)-OH + CH3-OH -- H2SO4 / Δ / reflux --> CH3-C(=O)-O-CH3 + H2O could be described as a substitution reaction, but would usually be called a condensation Another important category of organic reactions are straight-forward Lowry-Bronsted acid-base reactions: Eg. (CH3-CH2)3N + HCl → (CH3-CH2)3NH^+ + Cl^- Note that there are also some reactions that are difficult to characterise in a simple way, like the following reactions requiring catalysis: stilbene + ethylene → styrene C6H5-CH=CH-C6H5 + CH2=CH2 → 2 C6H5-CH=CH2 but-1-yne + water → butanone CH3-CH2-C≡CH + H2O → CH3-CH2-C(=O)-CH3 (this is actually an addition reaction followed by an isomerisation) CH3-CH2-C(=O)-CH3 + NH2-OH → CH3-CH2-C(=N-OH)-CH3 + H2O the pinacol to pinacolone rearrangement CH3-C(CH3)(OH)-C(CH3)(OH)-CH3 → CH3-C(CH3)2-C(=O)-CH3 which is an elimination reaction that involves an isomerisation ... I add these last few just to illustrate that the general types are a useful tool / guide for understanding organic chemistry, but they are not the be-all and end-all.
A semi-structural formula for this molecule is CH3-(CH2)2-CH=C(CH3)-CH3.
The condensed formula for 2,2,3-trimethylpentane is CH₃C(CH₃)₂CH(CH₃)₂CH₃.
1. hexane: CH3-CH2-CH2-CH2-CH2-CH32. 3-methylpentane: CH3-CH2-CH(CH3)-CH2-CH33. 2-methylpentane: CH3-CH(CH3)-CH2-CH2-CH34. 2,2-dimethylbutane: CH3-C(CH3(CH3))-CH2-CH3
The compound CH2=CH-CH=CH2 when reacts with HBr gives 1,4 addition product, CH3-CH=CH-CH2Br
there are 4 possibilities 1- CH3-CH2-C=CH one triple bond 2-CH3-C=C-CH3 one triple bond 3-CH2=CH-CH=CH2 two double bonds 4-CH2=C=CH-CH3 two double bonds
yes it have two isomer CH3.CH2.CH=CH-CH3, and CH3-CH=C-CH3 ! CH3 BY ATIF JUTT
The condensed formula for 2,3,3,4-tetramethylnonane is CH3-CH(CH3)-CH(CH3)-CH2-CH2-CH2-CH2-CH2-CH3.
CH3-CH=CH-CH2-CH2-CH3, where the two Hs on the C=C are on opposite side (trans to each other)
CH2CH2CH3 is NOT a compound name, but a 'Propyl' functional group , which would be attached to a larger molecule. Propane is CH3-CH2-CH3 Propene is CH2=CH-CH3 Propyne is HC=C-CH3 ( A triple bond). The CH2CH2CH2, is written as R-CH2CH2CH3 , the propyl functional group and 'R' the rest of the molecule.
The compound CH3 is known as methyl group. It is a functional group consisting of a carbon atom bonded to three hydrogen atoms.
Addition Reactions - involve the conversion of a π bond into 2 new σ bonds General form: A + B → C Eg. CH3-CH=CH-CH3 + HCl → CH3-CH2-CHCl-CH3 Substitution Reactions - involve the no change in bonding - one σ bond replaces another General form: A + B → C + D Eg. CH3-CHBr-CH2-CH3 + KOH(aq) → CH3-CH(OH)-CH2-CH3 + KBr Elimination Reactions - reverse of addition, in that two σ bonds are lost, replaced by a new π bond General form: A → B + C Eg. CH3-CH(OH)-CH2-CH3 -- conc. H2SO4 --> CH3-CH=CH-CH3 + H2O Rearrangement / Isomerisation - process in which a single substance changes structure, A → B. Such a reaction may involve changes in bond / type, though this is not necessary. These reactions are comparatively rare. Eg. CH3-CH2-CH2-C(OH)=CH2 → CH3-CH2-CH2-C(=O)-CH3 These are the four "prototypical" reactions, though several others which can be categorised as one of these are generally referred to by other names. Eg. CH3-CH(OH)-CH3 -- H2SO4 / K2Cr2O7 --> CH3-C(=O)-CH3 could be described as an elimination reaction, but would usually be called an oxidation Eg. CH3-C(=O)-CH3 -- 1. LiAlH4 2. H^+ / H2O --> CH3-CH(OH)-CH3 could be described as a (nucleophilic) addition reaction, but would usually be called a reduction Eg. CH3-C(=O)-OH + CH3-OH -- H2SO4 / Δ / reflux --> CH3-C(=O)-O-CH3 + H2O could be described as a substitution reaction, but would usually be called a condensation Another important category of organic reactions are straight-forward Lowry-Bronsted acid-base reactions: Eg. (CH3-CH2)3N + HCl → (CH3-CH2)3NH^+ + Cl^- Note that there are also some reactions that are difficult to characterise in a simple way, like the following reactions requiring catalysis: stilbene + ethylene → styrene C6H5-CH=CH-C6H5 + CH2=CH2 → 2 C6H5-CH=CH2 but-1-yne + water → butanone CH3-CH2-C≡CH + H2O → CH3-CH2-C(=O)-CH3 (this is actually an addition reaction followed by an isomerisation) CH3-CH2-C(=O)-CH3 + NH2-OH → CH3-CH2-C(=N-OH)-CH3 + H2O the pinacol to pinacolone rearrangement CH3-C(CH3)(OH)-C(CH3)(OH)-CH3 → CH3-C(CH3)2-C(=O)-CH3 which is an elimination reaction that involves an isomerisation ... I add these last few just to illustrate that the general types are a useful tool / guide for understanding organic chemistry, but they are not the be-all and end-all.
Difficult to draw here, but let's try to describe: Three methyl groups (CH3-) and one H- atom bonded to one central C atom, then you'll get something like this: . . . .H CH3-C-CH3 . . . .CH3