what elements can h-bond
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Hydrogen bond A hydrogen bond is an electrostatic attraction between two polar groups that occurs when a hydrogen atom, covalently bound to a highly electronegative atom such as nitrogen, oxygen, or fluorine, experiences the electrostatic field of another highly electronegative atom nearby. Hydrogen bonds can occur between molecules or within different parts of a single molecule. Depending on the nature of the donor and acceptor atoms which constitute the bond, their geometry, and environment, the energy of a
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Science words and definitions H-Bond. A chemical bond in which a hydrogen atom of one molecule is attracted to an electronegative atom, especially a nitrogen, oxygen, or flourine atom, usually of another molecule.
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hydrogen bond hydrogen bond. A chemical bond in which a hydrogen atom that is already bonded to an atom in a molecule forms a second bond with another atom, either in the same molecule or in a different one. The second atom is usually of a type that strongly attracts electrons, such as nitrogen or oxygen.
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- ALKENES and POTASSIUM MANGANATE(VII) This page looks at the reaction of the carbon-carbon double bond in alkenes such as ethene with potassium manganate(VII) solution (potassium permanganate solution).sing the reaction to test for carbon-carbon double bonds If an organic compound reacts with dilute alkaline potassium manganate(VII) solution in the cold to give a green solution followed by a dark brown precipitate, then it may contain a carbon-carbon double bond.
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Hydrogen Bonding in Water (1) The bond strength depends on its length and angle, with the strongest hydrogen bonding in water existing in the short linear proton-centered H 5 O 2 + ion at about 120 kJ mol-1. However, small deviations from linearity in the bond angle (up to 20°) possibly have a relatively minor effect .
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Hydrogen bond The hydrogen bond (5 to 30 kJ/mole) is stronger than a van der Waals interaction, but weaker than covalent or ionic bonds. This type of bond can occur in inorganic molecules such as water and in organic molecules like DNA and proteins.
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Hydrogen Bonding If you liken the covalent bond between the oxygen and hydrogen to a stable marriage, the hydrogen bond has just good friends status. Water as a perfect example of hydrogen bonding. Notice that each water molecule can potentially form four hydrogen bonds with surrounding water molecules.There are exactly the right numbers of δ+ hydrogens and lone pairs so that every one of them can be involved in hydrogen bonding.ater as a perfect example of hydrogen bonding. Notice that each water molecule can potentially form four hydrogen bonds with surrounding water molecules. There are exactly the right numbers of δ+ hydrogens and lone pairs so that every one of them can be involved in hydrogen bonding.
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- Each hydrogen atom forms a double bond with the oxygen atom.  Each H atom has one double bond and free electrons The O atom has two double bonds (one with each H atom)   … Since the atoms are sharing electrons, the bonds are considered covalent. Covalent Bonds Covalent bonds often form between similar atoms, nonmetal to nonmetal or metal to metal. Covalent bonding signals a complete sharing of electrons.
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Hydrogen bond Water – Hydrogen Bonds The slightly negative oxygen atom of one water molecule is attracted to the slightly positive hydrogen atoms of nearby water molecules, forming hydrogen bonds. Each water molecule can form hydrogen bonds with up to four neighbors. Hydrogen bonds hold water molecules together. They form, break, and reform with great frequency. Extraordinary Properties that are a result of hydrogen bonds: Cohesive and adhesive behavior Resists changes in temperature
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- Any functional group that has these can hydrogen-bond with neighboring molecules: 1  C=O (hydrogen-bond acceptor) 2  C−O−C (hydrogen-bond acceptor) [some] 3  C−NR (hydrogen-bond acceptor) 4  C=NR (hydrogen-bond acceptor) 5  C−OH (hydrogen-bond donor AND acceptor) 6  C−NH (hydrogen-bond donor AND acceptor) 7  C=NH (hydrogen-bond acceptor AND donor)
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Structural Biochemistry/Chemical Bonding/Hydrogen bonds Only nitrogen, oxygen, and fluorine atoms can interact with hydrogen to form a hydrogen bond donor; this is different than a hydrogen covalent bond. The hydrogen bond acceptor however can be any atom which is in a polar bond, is electronegative, and has a lone pair.
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Why does hydrogen and chlorine form a single covalent bond? Hydrogen atoms only need two electrons in their outer level to reach the noble gas structure of helium. Once again, the covalent bond holds the two atoms together because the pair of electrons is attracted to both nuclei. Hydrogen chloride. The hydrogen has a helium structure, and the chlorine an argon structure.
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Which functional groups would form hydrogen bonds with neighbouring molecules? Any functional group that has these can hydrogen-bond with neighboring molecules: Any lone electron pairs present on the oxygen or nitrogen in the carbonyl, ether, the hydroxyl, the amino, the imino, and the nitrile groups above are hydrogen-bond accepting, while the hydrogens on the hydroxyl, amino, and imino groups are hydrogen-bond donating.
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- Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest. The official language spoken in Greece is Greek.
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Covalent bond In the molecule H. 2, the hydrogen atoms share the two electrons via covalent bonding. Covalency is greatest between atoms of similar electronegativities. Thus, covalent bonding does not necessarily require that the two atoms be of the same elements, only that they be of comparable electronegativity.
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- Which of the following molecules would be expected to form hydrogen bonds in the liquid state or solid state: H2SO4, HF, CH3OH (methanol), and CH2O (formaldehyde)? A) H2SO4, HF, and CH3OH B) HF and CH3OH C) H2SO4, HF, and CH2O D) HF, CH3OH, and CH2O E) CH3OH and CH2O Please help!
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Hydrogen Bond Examples (Chemistry) 1 hydrofluoric acid - HF - Hydrofluoric acid forms what is called a symmetric hydrogen bond, which is stronger than the regular hydrogen bond. 2  proteins - Hydrogen bonds result in protein folding, which helps the molecule maintain stability and assume a functional configuration.
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What are hydrogen bonds? Confidence votes 172. Hydrogen bonds are the bonds that are formed due interaction of a hydrogen atom with an electronegative atom (like oxygen). In these interactions, a hydrogen atom (consisted of only one proton and one electron) is a donor, and the respective electronegative atom is an acceptor of the bond.
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- A. Classify the bond formed by the following pairs of atoms as ionic or covalent. 1  Silicon and Fluorine. 2  Boron and Carbon. 3  Lithium and Chlorine. 4  Hydrogen and Oxygen. 5  Aluminum and Chlorine. 6  Magnesium and Nitrogen. 7  Cesium and Bromine. 8  Hydrogen and Iodine.
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- All transition metals and rare earth metals act as positives in ionic bonding. Hydrogen can be involved in ionic bonding. It will act as a nonmetal with anegative one charge. It is named hydride. There are more complex ionic bonding situations which will remain for later. For example, the bond between NH 4 + and Cl¯ in ammonium chloride is an ionic bond.
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Hydrogen bond An example of a hydrogen bond donor is the hydrogen from the hydroxyl group of ethanol, which is bonded to an oxygen. In a hydrogen bond, the electronegative atom not covalently attached to the hydrogen is named proton acceptor, whereas the one covalently bound to the hydrogen is named the proton donor. Examples of hydrogen bond donating (donors) and hydrogen bond accepting groups (acceptors)
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- Neighboring H 2 O molecules interact transiently by way of hydrogen bonds (depicted as blue and white ovals). Strong linkages—called covalent bonds—hold together the hydrogen (white) and oxygen (red) atoms of individual H 2 O molecules. Covalent bonds occur when two atoms—in this case oxygen and hydrogen—share electrons with each other. Because oxygen and hydrogen attract the shared electrons unequally, each end of the V-shaped H 2 O molecule adopts a slightly different charge.
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Which compound has the strongest hydrogen bonding between its molecules? 1. HBr 2. HF 3. HCl 4. HI Which compound has the strongest hydrogen bonding between its molecules? 1. HBr 2. HF 3. HCl 4. HI
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Water (molecule) A water molecule can form a maximum of four hydrogen bonds because it can accept two and donate two hydrogens. Other molecules like hydrogen fluoride, ammonia, methanol form hydrogen bonds but they do not show anomalous behaviour of thermodynamic, kinetic or structural properties like those observed in water.
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- Most carbon compounds also contain hydrogen, and hydrogen forms compounds with virtually all the other elements as well. Compounds of hydrogen are frequently called hydrides, even though the name hydride literally describes compounds that contain an H-ion.here are equally valid arguments for placing hydrogen in Group VIIA. It forms compounds (such as NaH and CaH 2) that are analogs of halogen compounds (such as NaF and CaCl 2). It also combines with other nonmetals to form covalent compounds (such as H 2 O, CH 4, and NH 3), the way a nonmetal should.
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- Explain that the electrons are shared by the oxygen and hydrogen atoms forming a covalent bond. These bonds hold the oxygen and hydrogen atoms together and form the H2O molecule. The reason why the atoms are able to bond is that the attractions are strong enough in both directions and there is room for the electrons on the outer energy level of the atoms.