Question about alkane and alkene?
967104
alkenes r more reactive as they can undergo addition reactions too due to the presence of double bonds while alkanes can undergo only substitution reactions.alkynes r evn more reactive as they hv triple bonds.\nwat is a soptier flame????\n\nbromine test.alkene will decolourize the bromine while alkane will not.
970712
typical gasoline consists of hydrocarbons with between 5 and 12 carbon atoms per molecule
798859
Well they both have six carbon atoms!\nBenzene has an octane number of 101\nn-Haxane has an octane number of 25\nso i guess the answer is false
1112022
An alkene, or olefine, in organic chemistry is an unsaturated hydrocarbon containing at least one carbon to carbon double bond. The simplest alkenes, with only one double bond, form a homologous series with general formula CnH2n.\n\nThe simplest alkene is ethylene (C2H4), which has the International Union of Pure and Applied Chemistry (IUPAC) name ethene. Alkenes are also called olefins (an archaic synonym, widely used in the petrochemical industry) or vinyl compounds.\n\nShape of alkenes\n\nAs predicted by the VSEPR model of electron pair replusion, the molecular geometry of alkenes includes bond angles about each carbon in a double bond of about 120°. The angle may vary because of steric strain introduced by nonbonded interactions created by functional groups attached to the carbons of the double bond. For example, the C-C-C bond angle in propylene is 123.9°. The alkene double bond is stronger than a single covalent bond and also shorter with an average bond length of 133 picometres.\n\n\nMolecular geometry\n\nLike single covalent bonds, double bonds can be described in terms of overlapping atomic orbitals, except that unlike a single bond (which consists of a single sigma bond), a carbon-carbon double bond consists of one sigma bond and one pi bond.\n\nEach carbon of the double bond uses its three sp2 hybrid orbitals to form sigma bonds to three atoms. The unhybridized 2p atomic orbitals, which lie perpendicular to the plane created by the axes of the three sp2 hybrid orbitals, combine to form the pi bond.\ncis-2-Butylene\nEnlarge\ncis-2-Butylene\ntrans-2-Butylene\nEnlarge\ntrans-2-Butylene\n\nBecause it requires a large amount of energy to break a pi bond (264 kJ/mol in ethylene), rotation about the carbon-carbon double bond is very difficult and therefore severely restricted. As a consequence substituted alkenes may exist as one of two isomers called a cis isomer and a trans isomer. For example, in cis-2-butylene the two methyl substituents face the same side of the double bond and in trans-2-butylene they face the opposite side.\n\nIt is certainly not impossible to twist a double bond. In fact, a 90° twist requires an energy approximately equal to half the strength of a pi bond. The misalignment of the p orbitals is less than expected because pyridalization takes place. trans-Cyclooctene is a stable strained alkene and the orbital misalignment is only 19° with a dihedral angle of 137° (normal 120°) and a degree of pyramidalization of 18°. This explains the dipole moment of 0.8 D for this compound (cis-isomer 0.4 D) where a value of zero is expected.[1] The trans isomer of cycloheptene is only stable at low temperatures.
273309
wat r u ppl talking about....u ppl r absolutely wrong.....its alkynes n i am 100% sure about\n\nthey r more reactive becoz of there triple bonds...\n\n\n2 ppl in a row a row giving a wrong answer can confuse a person completely
988090
It's just another name for alkene.  Olefine is from Latin which means "oil forming gas" describes alkene well.  The link below have more information on alkene.
560469
Alkanes are quite inert.  This is because of the bond energies they exhibit between them. C-H, C-C bond energies are high (C-H=96-99 Kcal/mol, C-C= 83-85kcal/mol.)
941725
u cannot eliminate anything as all of the products can be hydrogenated. But 2-Methylpropene give isobutane upon hydrogenation, whereas the others give butane.\n\nYou need more information to eliminate one of the above probably the 4th one.
703480
These chemicals have one thing in common, carbon atoms. Carbon atoms link in chains, like C-C-C. Carbon atoms "like" to have 4 bonds with other atoms. In each of the chemicals you named, the carbons are all single or double-bonded to other carbons; the other bonds are with hydrogen atoms.\n\nThese are the simplest "organic chemicals". It used to be thought that "organic" chemicals were produced by living things. Now they're known to be produced in outer space as well. So there are many possible "origins" for these molecules in that sense.\n\nMethane molecules have only one carbon atom; octane has 8. So you might say that all of these molecules have their origin in carbon atoms sharing bonds with other carbons.
1037366
Ethene, C(2)H(4) contains a double bond between Carbons and is relatively unstable compared to CH(4), which contains only single bonds.  A brute force method would be to apply heat (raising the temperature) to rupture the double bond to produce the more stable methane.  As a practical consequence, however, recall that methane, as a gas, is combustible.
1068778
pure butane is neutral for sure. And butane, no matter isobutane(2-methylpropane) or just butane, is an alkane. \n\npH = -log[concentration of hydronium ions] (hydronium is H3O+), but Alkane does not dissolve in water since no ionic bond exists in the compound, so measuring its pH does not make much sense.\n\nCarbon and hydrogen have very similar electronegativity, so it's very difficult to remove hydrogen from the saturate carbon chain. alkane has pka value around 50, pKa value for water is around 16.
562353
pure butane is neutral for sure. And butane, no matter isobutane or just butane, is alkane. Alkane does not dissolve in water since no ionic bond exists in the compound, so measuring its pH does not make much sense.\n\nCarbon and hydrogen have very similar electronegativity, so it's very difficult to remove hydrogen from the carbon chain. It's pka value is around 50.
898957
Its a mixture of hydrocarbons. It doesn not have a name because it is not composed of one compound.
793123
All alkanes exist as two or more isomers is not true\n\nbecause methane, ethane and propane are also alkane, but they have no isomers.
318950
Geometrical isomerism (Cis and trans)is not shown on the compound you ask for, if you ask about an alkene(carbon,carbon double bond ) i.e 1,4-dichlorohexene the sturcure is (Cl)CH2-CH2=CH2-CH2(Cl)CH2CH3.
140226
ethanol and oil\nwater and chloroform
322532
No, water (H2O) and Gasoline [mostly Octane] (C8H18) are quite different on a molecular level,\nFor one, water has no carbon, and Octane has no Oxygen.