What kinds of bonds are found in a sample of H2O(s)?
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Hydrogen bonding is found between the H+ of one H2O and the O- of the other H2O molecule. Also, within each H2O there are covalent bonds between the O and H.
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http://www.chemguide.co.uk/atoms/bonding/vdw.html
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Ethane is nonpolar.  Ethanol has a polar hydroxyl group which can form hydrogen bonds with water.
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two parts hydrogen.......one part oxygen...hence.....H2O
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Intermolecular forces (vander waals, hydrogen bonds), are very much weaker than covalent or ionic bonds\nyou see, when we evaporate water in its boiling points(or other liquid), we break the intermolecular forces (in water's case, hydrogen bonds), but the heat still cannot break up covalent H-O bonds, so the chemical formula of water vapour is still H2O but with no intermolecular forces
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There are 3 types of bond in sugars :\n\n1) -C-H (Covalent)\n2) -C-0H (Partially ionic)\n3) -C-O-C- (Covalent)\nand vander-waals force of attraction.
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Nonpolar bonds in sugars and starch
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You have some errors there:\n\nSO4 with the -2 charge has 4 bonded pairs and no lone pairs (unbonded pairs) on the sulfur (but three on each of the four oxygens, which I assume you are not counting).\n\nH2 is correct with 1,0\n\nH2O2 is correct with 3, 4 (two lone pair on each oxygen)\n\nCH2O has 4 bonded pairs (four between the carbon and the oxygen for a double bond) and 0 non bonded pair.\n\nCO2 has 4, 0, with double bonds between each oxygen and the central carbon\n\nHF, is 1,3\n\nCl2 is 1, 6, if you count the lone pairs on the two chlorine like you are doing with F in HF but not the O in SO4 with the -2 charge.\n\nSO2 has a resonance structure where three bonded pair are smeared over two bonds between the S and O.  There are six unbonded pair (3 per oxygen) on the two oxygen.\n\nCH4O, (methyl alcohol?, CH3OH?) has four bonded pair between the carbon and three hydrogen and the one oxygen.  The oxygen has another bonded pair for its hydrogen and two unbonded pair.  This is 5, 2 as you have it.
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The polarity of water Water has a simple molecular structure. It is composed of one oxygen atom and two hydrogen atoms. Each hydrogen atom is covalently bonded to the oxygen via a shared pair of electrons. Oxygen also has two unshared pairs of electrons. Thus there are 4 pairs of electrons surrounding the oxygen atom, two pairs involved in covalent bonds with hydrogen, and two unshared pairs on the opposite side of the oxygen atom. Oxygen is an "electronegative" or electron "loving" atom compared with hydrogen. \nWater is a "polar" molecule, meaning that there is an uneven distribution of electron density. Water has a partial negative charge () near the oxygen atom due the unshared pairs of electrons, and partial positive charges () near the hydrogen atoms.
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If you could shrink 'way down and look at a single water molecule, you\nwould find that it is made of two hydrogen atoms and one oxygen atom.\nThey are arranged in a V-shape, with the oxygen at the point.  The result\nof this shape is that there is more negative charge at one end of the\nmolecule than the other (oxygen likes to have negative charge).  We call \nthis a POLAR molecule.\n\nOther polar molecules like salt and sugar and Kool-aid will dissolve in\nwater because the water molecule will be attracted to their charged ends.\nThe water molecule likes their charges so much that it will actually\nsurround the salt or sugar molecules, so that each one looks like a ball\nof water molecules.  We call this SOLVATION.  Since the salt molecule\nis surrounded now by water, it can't stick to other salt molecules, so\nit just sort of floats away.
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Yes 1 is correct. Oxygen and Hydrogen have very strong bonds. Also known as hydrogen bonding. That's why water, for example, has such a high surface tension. You are correct!
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A water molecule contains two elements: hydrogen and oxygen. Both elements have different electronegativities, which is a fancy word meaning how well they can attract electrons. Since oxygen has a higher electronegativity, it forces the electrons of the water molecule toward itself, giving the oxygen element a slight negative charge and the hydrogen atoms slight positive charges.\nBasically speaking, water itself is somewhat charged. This makes water what is called a polar molecule and allows it to conduct electricity. This also accounts for how well water adheres to itself (cohesion).\nHowever, this polarity is relatively small.
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During electrolysis, the oxygen atom in H20 has 2 pairs of unbonded electrons, and it is these electrons that act as "solvents" breaking the bond between atoms and attacking the postive ion that forms as a result.  So you can visualize a solution as islands of ions surrounded by water ions, with the extra electrons of oxygen surrounding the positive ions and the negative ions surrounded by the hydrogens of water.  \n\nA "strong" electrolyte is one that dissociates almost completely into ions i.e the water molecules break its bond and surround its ions easily.  HCl is a good example.  HF is an exception.  Since F is the element with the strongest electronegativity (4.0) it forms very strong bonds.  And, apparently, water molecules just don't have the ability to break the H-F bond, so very little of HF ionizes in water.    Talking about HF, it is one of the few compounds (and as far as I know, the only compound) that can attack glass (Si03) to form fluorosilicates.
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Water itself is a polar molecule, with a partial negative charge on the oxygen atom and a partial positive on the hydrogens. It allows water to hydrogen bond with other molecules.
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There are two types of chemical bond. The first type of chemical bond is the ionic bond. Substance with ionic bond only dissolve in water and not in organic solvents like the alcohol and tetrachloromethane. Examples of substance with ionic bond are sodium chloride, aluminium oxide and magnesuim oxide and so on. The second type of chemical bond is the covalent bond. Substance with covalent bonding DO NOT dissolve in water BUT only dissolves in organic solvents like alcohols. Therefore, substance with covalent bonding like the alcohol(includes ethanol and methanol), ammonia, methane and tetrachloromethane only dissolve in alcohol and not water.
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water is H20 ( 2 hydrogen and 1 oxygen atoms). The Hydrogen atom's electron chemistry dictate it to be positive, where the oxygen atom's electron chemistry dictate it to be negative, so the negativity of 1 water atom will non-covalently bind to the positivity of ANOTHER water atom, and so on. So overall, H2O molecules form a lot of weak bonds that hold them closely, and it will take a lot of energy to break those bonds and let water be vapor. So it take a lot of heat energy to boil water/break water bonds.
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Covalent bond: bond in which one or more pairs of electrons are shared by two atoms.\n\nIonic bond: bond in which one or more electrons from one atom are removed and attached to another atom, resulting in positive and negative ions which attract each other.\n\nOther types of bonds include metallic bonds and hydrogen bonding. The attractive forces between molecules in a liquid can be characterized as van der Waals bonds.