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Hydrogen Bond vs Ionic Bond
The Debate between Hydrogen Bonds and Ionic Bonds
The formation of man-made things, its bonds are essential. Hydrogen bonds and ionic bonds are both related to physical properties, but their properties are very different and cannot be ignored.
Ionic bonds are formed by the attraction of anions and cations. When metals and non-metals combine, metals are prone to lose electrons into cations, and non-metals are prone to obtain electrons as anions. The two are linked by electrostatic attractive forces, which are like yin and yang, and their forces are strong. Compounds composed of ionic bonds have high melting and boiling points. Such as sodium chloride, a common salt in the day, in its crystal structure, sodium ions and chloride ions are arranged in an orderly manner, and the ionic bonds are strong, causing its melting and boiling point to be quite high. It needs a strong fire to melt it. In water, the ionic bond is easily broken by the action of water, and the ions are free, so they can conduct electricity, which is the characteristic of ionic compounds in aqueous solutions.
In contrast, hydrogen bonds have a weaker force than ionic bonds, which is the weak interaction between hydrogen atoms and atoms with high electronegativity (such as nitrogen, oxygen, fluorine). Hydrogen bonds are commonly found in hydrogen-containing compounds, such as water. There are covalent bonds between hydrogen atoms and oxygen atoms, and hydrogen bonds between water molecules. The boiling point of water is different from common sense, which is due to this. If there is no hydrogen bond, its boiling point should be very low in terms of the relative molecular mass of water. However, due to the existence of hydrogen bonds, water molecules attract each other, and more energy is required to vaporize them, so the boiling point of water rises. And hydrogen bonds also affect the solubility of substances. Compounds containing hydrogen bonds are easily soluble in solvents containing hydrogen bonds. For example, ethanol and water are mutually soluble, and both contain hydrogen bonds, which are compatible with each other.
Hydrogen bonds are flexible and ionic bonds are rigid, and the two dominate the properties of substances in different situations. In life systems, hydrogen bonds play an important role, and the structural stability of proteins and nucleic acids depends on them; while ionic bonds demonstrate their properties in terms of mineral composition and salt properties. It is clear that the differences between hydrogen bonds and ionic bonds can be used to know the reasons for the change of physical properties, which is of great benefit to the study of chemistry and the preparation of substances.
The formation of man-made things, its bonds are essential. Hydrogen bonds and ionic bonds are both related to physical properties, but their properties are very different and cannot be ignored.
Ionic bonds are formed by the attraction of anions and cations. When metals and non-metals combine, metals are prone to lose electrons into cations, and non-metals are prone to obtain electrons as anions. The two are linked by electrostatic attractive forces, which are like yin and yang, and their forces are strong. Compounds composed of ionic bonds have high melting and boiling points. Such as sodium chloride, a common salt in the day, in its crystal structure, sodium ions and chloride ions are arranged in an orderly manner, and the ionic bonds are strong, causing its melting and boiling point to be quite high. It needs a strong fire to melt it. In water, the ionic bond is easily broken by the action of water, and the ions are free, so they can conduct electricity, which is the characteristic of ionic compounds in aqueous solutions.
In contrast, hydrogen bonds have a weaker force than ionic bonds, which is the weak interaction between hydrogen atoms and atoms with high electronegativity (such as nitrogen, oxygen, fluorine). Hydrogen bonds are commonly found in hydrogen-containing compounds, such as water. There are covalent bonds between hydrogen atoms and oxygen atoms, and hydrogen bonds between water molecules. The boiling point of water is different from common sense, which is due to this. If there is no hydrogen bond, its boiling point should be very low in terms of the relative molecular mass of water. However, due to the existence of hydrogen bonds, water molecules attract each other, and more energy is required to vaporize them, so the boiling point of water rises. And hydrogen bonds also affect the solubility of substances. Compounds containing hydrogen bonds are easily soluble in solvents containing hydrogen bonds. For example, ethanol and water are mutually soluble, and both contain hydrogen bonds, which are compatible with each other.
Hydrogen bonds are flexible and ionic bonds are rigid, and the two dominate the properties of substances in different situations. In life systems, hydrogen bonds play an important role, and the structural stability of proteins and nucleic acids depends on them; while ionic bonds demonstrate their properties in terms of mineral composition and salt properties. It is clear that the differences between hydrogen bonds and ionic bonds can be used to know the reasons for the change of physical properties, which is of great benefit to the study of chemistry and the preparation of substances.
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