what does c6h12+02 mean in biology?
602893
It looks like the combustion of hexene.\n\nYou might be talking about the chemical compound of glucose also if that's a typo in there.
920400
C10H8.\n\nIt is like two benzene rings that share a common side.
800509
Here a total guess\n\nThe mole weight of C6H12 = 6*12 + 12*1 = ~84 grams\n3.57 grams / 84 grams = how many moles = M = 0.0425\n\nThe temperature rise = 31.3 - 29.1 = 2.2 degrees C = T\nThe heat capacity  = 6.210 KJ /degree = H\nSo the Energy released = H * T = 6.210 * 2.2 = 13.662 Kjoules\n\nSo the heat of reaction = H * T / M\nergo 13.662 / 0.0425 = 321.45882 KJ/Mole
228649
CO2 + H2O + light = C6H12O6 + O2
1152693
enantiomeric excess (%) = \n(specific rotation of the mixture/ specific rotation of the pure enantiomer in excess)*100 \n\nor \n\nenantiomeric excess (%) = \n( | [enantiomer 1] - [enantiomer 1] | ) /([enantiomer 1] + [enantiomer 1] *100 \n\nwhere the square brackets indicate concentrations, and the | -- | in the numerator means "absolute value".
958454
To visualize (C6H5)2CHBr, you have to identify the "side groups".  Obvious Br is one side group and so is one H.  Then you have two phenyl side groups so that leaves you that carbon to build on.  The molecule one carbon bound to two phenyl groups, one hydrogen and one bromine, each with a single bond.\n\nOK, let's build on that.  You are now going to react it with ethanol and you want to know what mechanism to expect.  Since Teach didn't show you the products, you're going to have to think about this one.  First, analyze what type of molecules you have.  The first molecule we spoke of, what type of carbon is the main carbon (primary, secondary, tertiary)?  What type of reaction (Sn1 or E1) does that type of carbon favor?  How about the ethanol?\n\nActually, the alpha carbon in ethanol, being a primary carbon, would favor Sn2 but that's not an option.  OH is an awful leaving group and alkanes don't like to carry a charge.  So we can rule the carbon out.\n\nThe problem must revolve around diphenylmethylbromide.  Having two phenyls would stabilize a positive charge fairly well and that is the first step for both E1 and Sn1 mechanisms.  So, which one is it?  The big giveaway is that En reactions are called elimination for a reason.  They lose a pair of substituents to form a double or triple bond, always a higher order bond.  Can there be any higher order bonds formed in this molecule?  How about Sn1, then?  That would result in (C6H5)2CH(OC2H5) + HBr.  Is this more likely than elimination?  Would this be endothermic or exothermic?\n\nThat's as much as I'm going to do.  The rest is for you, as you only really needed to know the structure of the first molecule.  But I hope this helps you understand what you are doing.\n\nGood luck.
791445
It's composed of the most common isotope of carbon and hydrogen which is carbon-12 and hydrogen-1.\n\nCarbon-12 has 6 protons, 6 neutrons and 6 electrons.\n\nHydrogen-1 has 1 proton and 1 neutron.\n\nSo...\n\nProtons: (6 + 1) * 6 = 42\nNeutrons 6 * 6 = 36\nElectrons (6 + 1) * 6 = 42
976540
a) +1\nb) 0   (in molecule state)\nc) 0\nd) -3\ne) 0\nf) +4 of Carbon\ng) +2 of Mg\nh) +1 of Chlorine (interesting!)\ni) +6 of Sulphur
977990
IF it is of a disaccharide, both being 6 carbon sugars, such as in the case of sucrose (i thinking glucose and mannose? or gluc and fruc?) and their are 12 Carbons, than essentially 12 CO2 molecules, thus D would be the answer.
145847
# Large molecules in biological systems namely proteins, nucleic acids, and polysaccharides.\nwww.whatislife.com/glossary.htm\n\n# large single chemical entities such as pieces of DNA or RNA.\nwww.biologylessons.sdsu.edu/classes/lab3/glossary.html\n\n# A macromolecule is a molecule of high relative molecular mass, the structure of which essentially comprises the multiple repetition of units derived, actually or conceptually, from molecules of low relative molecular mass.\nen.wikipedia.org/wiki/Macromolecule\n\nA macromolecule is a molecule with a large molecular mass, but generally the use of the term is restricted to polymers and molecules which structurally include polymers. [1]\n\nMany examples come from biology and in particular biochemistry. These include proteins, starches, lipids and nucleic acids (such as DNA), which are sometimes called "biomacromolecules" or biopolymers. Synthetic examples include plastics. The integral domains of crystals and metals, while composed of very large numbers of atoms joined by molecule-like bonds, are rarely referred to as "macromolecules."\n\nThe term macromolecule is also sometimes used to refer to aggregates of two or more macromolecules held together by intermolecular forces rather than by chemical "bonds". This usage is common in particular when the individual macromolecules involved aggregate or "assemble" spontaneously and rarely exist in isolation. Such an aggregate is more properly called a macromolecular complex. In such a context, individual macromolecules are often referred to as subunits (see e.g. protein subunit).\n\nSubstances that are composed of macromolecules often have unusual physical properties. The properties of liquid crystals and such elastomers as rubber are examples. Although too small to see, individual pieces of DNA in solution can be broken in two simply by suctioning the solution through an ordinary straw. This is not true of smaller molecules. The 1964 edition of Linus Pauling's College Chemistry asserted that DNA in nature is never longer than about 5000 base pairs. This is because biochemists were inadvertently and with perfect consistency breaking their samples into pieces. In fact, the DNA of chromosomes can be tens of millions of base pairs long.\n\nAnother common macromolecular property that does not characterize smaller molecules is the need for assistance in dissolving into solution. Many require salts or particular ions to dissolve in water. Proteins will denature if the solute concentration of their solution is too high or too low.
871305
2 unsaturations are implied by this formula; most likely a carbonyl and another double bond.\n\nTo find this, you take the # of carbons x 2, then add 2 more.  This gives you the # of hydrogens there would be on a saturated molecule.  In this case, 12.  Then 12-8 = 4 missing hydrogens.  2 hydrogens = 1 unsaturation; therefore, 4 divided by 2 = 2 unsaturations. \n\nOxygens are ignored in the calculations.
664335
carbon is element # 6 and its molecular weight is 12.0
721054
sunlight+water+carbon dioxde(co2) ===> glucose(c6h12o6?) + oxygen
725621
6Rb(s)+N2(g)--->2Rb3N(s)
295569
The styrene answer above is correct but the formula is not. It is C6H5CH=CH2 which is C8H8.
963224
The space between the molecules
1149538
formula of ethylene glycol is C2H6O2\n                            ie CH2OH-CH2OH\napproximate atomic masses of C=12\n                                                   H=1\n                                                   O=16\n   therefore,\n2*12+6*1+2*16\n= 24+6+32\n=62g/mol