What are polar, and non-polar bonds, and whats the diff. between the two? Why do they matter in chemistry?
441135
polar means that the electron cloud is not even, and yields a slight negative charge to one side, and postive charge to the other side, it is call a dipo moment.\n\nNon polar means that the electron cloud is evenly balanced and no dipo moment is formed.\n\nNaCl, table salt is polar, and will go into solution with a polar solvent such as water.\n\nMethane, CH4 is non polar and will not go into solution with a polar solvent, but will with a non-polar solvent.\n\nThis is matters alot in chemistry, since electron reactions are the bases for all chemical bonds and reactions.\n\nRead more , and you will understand better, good luck
82769
Specifically the intermolucular forces make up surface tension in water are hydrogen bonds.  A hydrogen bond is a noncovalent interaction between two polar molecules.  In this case one molecule of water lines up with another as shown here:  H2O - HOH.  Where the "-" is indicating an interaction between the relatively postive hydrogen on the right molecule and the negative lone pair of electrons on the oxygen of the left molecule.  As each molecule has two hydrogen atoms and two lone pairs of electrons on the oxygen, each is capable of participating in four separate hydrogen bonds.
296542
when a bond is formed, some electrons don't participate in that because of hybrid levels, thats why there are some electrons left known as lone pair, they are never single, they are a pair of opposite spin.
953238
It is true for individual bonds, but not for molecules.\nThe dipole moment of the molecule will depend on the geometry of the polar covalent bonds. E.g. CF4 has 4 polar bonds but they arranged so that the sum of their dipole moments is zero and the molecule has actually no dipole moment.
769822
A polar molecule usually contains polar bonds - bonds which have unequal sharing of electrons between the two atoms involved in bonding. Examples are salts, acids and bases. A non-polar compound usually contains non-polar bonds - bonds which have identical or similar sharing of electrons. Examples are oils and hydrocarbons.\n\nCitric acid is polar.
126671
Molecules always refer to atoms that have covalent bonds (like a water molecule). Stuff with ionic bonds are just ionic compounds.\n\nMore info: http://misterguch.brinkster.net/covalentcompounds.html
335753
1. Covalent Bonds\n2. Ionic Bonds\n3. Hydrogen Bonds
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The different kinds of compounds are those that contain ionic bonds and those that contain covalent bonds (which could also be either polar or nonpolar)\nThe kinds of mixtures are homogeneous (where each component of the mixture is evenly distributed) and heterogeneous (where the components are unevely distributed)
749182
Nonpolar bonds in sugars and starch
805803
Like dissolves like...where you're looking at polarity.  Covalently bonded solutes usually dissovle in covalently bonded solvents, but not in very polar things like water.  Salts, which are ionically bonded, require very polar solvents (like water or liquid ammonia).  Polar functional groups on solute molecules mean you need similar polar groups on your solvent molecules.  Non-polar solutes like non-polar solvents.
12669
A covalent bond\nThe other is an Ionic Bond which is when one atom gives an electron to another atom.
919462
Ionic bonds are a type of chemical bond based on electrostatic forces between two oppositely-charged ions.\n\nCovalent bonding is a description form of chemical bonding that is characterized by the sharing of one or more electrons between two atoms. In general bonds are defined by a mutual attraction that holds the resultant molecule together. Often bonding occurs in such a way that the the outer electron shells of the participating atoms becomes filled. Such bonds are always stronger than the intermolecular hydrogen bond and similar in strength to or stronger than the ionic bond......;
960373
In chemistry, an ionic compound is a chemical compound in which ions are held together in a lattice structure by ionic bonds. The positively charged ion is usually a metal ion and the negatively charged ion is non-metallic element or molecule.\n\nIons can be single atoms, as in common table salt sodium chloride, or more complex groups such as calcium carbonate. But to be considered ions, they must carry a positive or negative charge.\n\nThus, in an ionic bond, one 'bonder' must have a positive charge and the other a negative one. By sticking to each other, they resolve, or partially resolve, their separate charge imbalances. Positive to positive and negative to negative ionic bonds do not occur. (For a real world analogy, experiment with a pair of bar magnets.)
146624
i have to disagree...\n\nthere is an atomic bond. it is the general term for, well, chemical bonding.\n\nthe types of atomic bonds are: ionic, covalent, metallic...\n\nionic bond- it is the bond that involves movement of electrons. it normally is the bond between a nonmetal (positively charged; found at the left side of the periodic table ladder) and a metal(negatively charged; found at the right side of the ladder). example: NaCl, FeO, MgO, etc...\n\ncovalent bonding- this involves the SHARING of electrons. this may be called non-metallic bonding because it is the formation of substances by bonding nonmetals such as C, O, N, S (those found at the right side of the ladder). examples: CO, CO2, NO, HF, CH4, etc...\n\nmetallic bonding- from the name itself, it is the bond between two metals. this may relate through alloying (the combination of metals). It involves the delocalized sharing of free electrons among a lattice of metal atoms.\n\n\nhope this helps...:-)
665955
it must be polar because the structure is tetrahedral with a lone pair at one corner of the tetrahedron and Cl atoms at the  rest three corners. so the individual As-Cl bond moments are not cancelled bcoz of the asymmetry of the molecule and the net polarity cant be zero.
740266
Silver Nitrate is a salt, meaning it's very polar.  But polar/nonpolar is usually used to describe covalent bonds.
863219
Electronegativity is a measure of the ability of an atom or molecule to attract electrons in the context of a chemical bond. The type of bond formed is largely determined by the difference in electronegativity between the atoms involved. Atoms with similar electronegativities will share an electron with each other and form a covalent bond. However, if the difference is too great, the electron will be permanently transferred to one atom and an ionic bond will form. Furthermore, in a covalent bond if one atom pulls slightly harder than the other a polar covalent bond will form.\n\nThe Pauling scale was devised in 1932 by Linus Pauling. On this scale, the most electronegative chemical element (fluorine) is given an electronegativity value of 3.98 (textbooks often state this value to be 4.0); the least electronegative element (francium) has a value of 0.7, and the remaining elements have values in between. On the Pauling scale, hydrogen is arbitrarily assigned a value of 2.1 or 2.2.\n\n'ΔEN' is the difference in electronegativity between two atoms or elements. Bonds between atoms with a large electronegativity difference (greater than or equal to 1.7) are usually considered to be ionic, while values between 1.7 and 0.4 are considered polar covalent. Values below 0.4 are considered non-polar covalent bonds, and electronegativity differences of 0 indicate a completely non-polar covalent bond.\n\nHope I helped!...\n