do the molecules entwine together through vibration or is it the removal of impurities that allow bonding of the molecules
128267
I'm sorry...my answer to this question, will either sound really smart or really stupid. \n\nMy AP Chemistry class just finished the chapter on bonding. We learned of Ionic bonds, Covalent Bonds, and Hydrogen bonds. \n\nAn ionic bond is a bond between a metal and non-metal and involves the transferring of electrons so that both atoms will become stable but with opposite charges, become attracted to each other, and form a molecule. An example is NaCl or table salt. Na is a metal, Cl is a non-metal.\n\nThe next is covalent bonding between two non-metals or non-metal and metal and involves sharing electrons. An example is O2 - oxygen.\n\nFinally hydrogen bonding is self-explanatory consisting of hydrogen and another element.\n\nBecause of the above, it is chemically impossible for two metals to bond as they will not have enough electrons to stabilize each other in the first place. \n\nI even performed this experiment in class. When a metal is heated it "oxidizes". Its atoms fuse with the oxygen atoms in the air and form the gas. For this reason a metal starts turning brown, as you are simply speeding up the process of rusting.\n\nSo your question is kind of impossible from what I have learned in class. \n\nI'm sorry if I am completely of the point in this answer (if there is something I am not getting and that two metals can actually bond) and I apologize for my ignorance and stupidity in advance. haha
667289
when the energy flows out when water or wax is cooled the the molecules get closer to each other and get more densely packed leading to a solid configuration
60609
The molecules of water do not actually "change."  They vibrate faster as they get warmer.  If they are vibrating slowly enough, the molecules are packed closely together into the solid form of water we call ice.  As they move faster they become the liquid state we commonly call water.  When they are vibrating fast enough they "evaporate" into the gaseous state.  \nIn any of these 3 states they are still molecules of water, they are just moving around at different speeds.
452373
carbon needs 4 bonds to be stable. if there is not enough stuff around to make single bonds, it will be double. and still be more reactive wanting just single bonds
207606
look at this website to understand....\n\nhttp://www.chemistry.mcmaster.ca/esam/Chapter_7/section_3.html
502885
The condensation of two sugar molecules is when these two molecules become covalently bound, through the loss of water. It may help to think of this reaction as the opposite of hydrolizing, or breaking apart two covalently bound sugar molecules. \n\nCheck out this website for more information on condensation reactions. \nhttp://en.wikipedia.org/wiki/Condensation_reaction
359655
because of the number of bonds between the atoms and as well that there are 2 lone pair of electrons on the oxygen and only 1 on the nitrogen if the bonding occurs
309445
Impurities in a substance would likely be of different elements and have different atomic/molecular structure than the substance. Different elements have different m.ps and b.ps. Using kinetic theory, as the substance heats up, the molecules will vibrate until they obtain sufficient energy (at b.p) to break free of their bonds/structure and move into gaseous state. Impurities, having a different b.p. (either higher or lower) will bump into these molecules and "suck/zap" some of their kinetic energy away, hence, more energy is required, and thus the b.p. for the impure substance is increased.\n\nApply the above explanation conversely for why m.p. decreases. An analogy I would use is that imagine you are in a crowded subway station/tunnel. If everyone walks at the same speed as you and in the same direction, you will be able to walk quickly without interruption. But as luck would have it, there's always some weird people who choose to stall, stroll or even walk in the opposite direction, thus forcing to slow down or change course.
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There isn't enough energy at near kelvin temperatures for molecules to do all their normal movements and fluctuations.  \n\nThe contrast to this state occurs at any temperature above 'near absolute zero', take for example the nominal temperatures we are comfortable with.  At this temperature there is more than enough energy available for a molecule to bend and vibrate in literally millions of ways....these vibrations occur on the picosecond timescale and for the most part, all accessible ways to vibrate and bend.\n  As the temperature is reduced there are less vibrational modes available and the more high energy ways to vibrate (generally those involving less favourable configurations) start to not occur.  \n\nThe vibrational efficiency and capability of a molecule thus decreases to the point of a few possible vibrational modes as absolute zero is approached.
105030
Yes you are correct.Different substances are different because of  their molecular structure and the constituents of each molecule. Molecules are well bound together in solids than in fluids (gases and liquids). The molecules are free in gases.\n Further the molecules are not at rest and are in vibrations.When the substance is heated  the average energy of a molecule  increases which tend to decrease the bindings of the molecules.\nGenerally by heating , a substance  chnges from solid to liquid and then to gaseous state.We call this as physical change.\nWhen the energy is  strong enough to break the  molecules into its constituent elements new compounds are produced we call it as chemical change.\nIn effect heat  has many things to do with their bondings
249095
a) 1\n2) depends on if the outer shell is full or not. If it's full, they probably bounce off of each other, if not full, they can create a bond with each other.\n3) stable, noble\n4) becasue it has an electrical charge since the protons (positive) and electrons (negative) are unequal.
30904
The answer has to do with symmetry of the molecule and hydrogen bonding.  That should get you going in the right direction
354735
It is not a reaction because the bond formed is ionic, not covalent.  Extraction is a better term for the process you are describing.
433620
Well, whether the bond is a single, double, or triple bond also determines the hybridization of the sigma bond.\n\nFor example, if you have two pi bonds in addition to the sigma bond, the sigma bond is an sp hybridized bond because two p orbitals on each atom are consumed making the two extra pi bonds.\n\nIf you have one pi bond in addition to the sigma bond, the sigma bond is an sp2 hybridized bond because only one p orbital on each atom is consumed to make the single pi bond.\n\nIf no p orbitals are used to make pi bonds all p orbitals are available to make the sp3 sigma bonds.\n\nJust count the number of bonds.  If one the sigma bond is sp3.  If two the sigma bond is sp2.  If three bonds, the sigma bond is sp.
89450
Do not offer bribes, this is immoral.\nMany here come to assist as a service.\n\nYour answer is here:\n\nWhen ice melts, kinetic energy of H2O molecules is increased by absorption of heat energy from the surroundings.\n\nHowever as the kinetic energy is increased to make the molecules move freely, Hydrogen Bonding among the water molecules becomes more effective and so a particular intermolecular distance is maintained among the molecules. \n\nThis is effective upto 4C.\n\nAfter 4C the H-bonding becomes so week as against kinetic energy that free movement of molecules is no more restricted and thus abnormal behaviour of water molecules is stopped.
571733
The chemical forces of attraction that hold atoms or ions together in chemical compounds are called chemical bonds. All chemical bonds result from the simultaneous attraction of one or more electrons by two or more.\n       You can give me your email address then i will prepare notes for you.\n  My email address is:\n\n\n                           masterpee_006@yahoo.co.uk\n\n\n\nOkay.Have a nice day and stay blessed.\n\n\nDo not forget to choose my answer as best answer.\nThank you.
536740
Two separate questions.  Liquid mercury, for example, contains mercury atoms that are not bonded to each other and are therefore monatomic.  Most metals are also monatomic in solid and liquid state, because heating them will cause them to separate (therefore they have a physical and not a chemical bond).  However, "liquid" and "solid" refer to the interactions between atoms, so you cannot talk about the "form" of a single atom because without other atoms to interact with, there is no meaning to the "liquid" or "solid" terms.