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Electrovalent compounds have high melting and boiling points as they are held by very strong electrostatic force of attraction making the compound stable and therefore they require a lot of energy to break.
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Why do mixtures not have sharp melting points and boiling points?
Because they are not pure compounds !
How is high melting and boiling points related to the structure of the compounds?
The structure of a compound will dictate what intermolecular forces hold the molecules together. The stronger these forces, the higher will be the boiling point.
List properties common to many organic compounds?
Some common properties of organic compounds include having covalent bonds, containing carbon and hydrogen atoms, being flammable, having low melting and boiling points, and often having a complex molecular structure.
What is usually a property of covalently bonded compounds?
Covalent bonded compounds have generally lower melting and boiling points, are not hard, are less conductive etc.
How can melting point and boiling point determination be used in identifying and or characterizing unknown compounds?
Melting point and boiling point determination can help in identifying unknown compounds by comparing the experimental values with known values in databases. A match can indicate the compound's identity. Additionally, the range of melting point and boiling point can provide information on the purity and molecular structure of the compound.
What are the 3 properties of electrovalent compounds?
Electrovalent compounds have high melting and boiling points due to strong electrostatic forces between ions. They are typically soluble in water because water molecules can surround and separate the ions. They tend to conduct electricity when dissolved in water or in the molten state, as the ions are free to move and carry electric charge.
Why ionic compounds have high melting and boiling points?
its simple. ionic compounds have strong electrovalent bonds which need more heat to be broken down. hence more heat is needed to convert the solid into its other state. therefore high melting and boiling point.
How does the melting point of ionic compounds compared to that of covalent compounds?
Ionic compounds generally have higher melting and boiling points.
Do elements compounds and mixtures have fix melting and boiling point?
Elements have fixed melting and boiling points, while compounds have varying melting and boiling points depending on their composition. Mixtures do not have fixed melting and boiling points, as they are composed of multiple substances which each have their own individual melting and boiling points.
Why do mixtures not have sharp melting points and boiling points?
Because they are not pure compounds !
What causes the differences in melting points and boiling points between ionic and covalent compounds molecular substances?
The differences in melting and boiling points between ionic and covalent compounds are due to the strength of the intermolecular forces present. Ionic compounds have strong electrostatic forces of attraction between oppositely charged ions, resulting in higher melting and boiling points. Covalent compounds have weaker intermolecular forces such as London dispersion forces or dipole-dipole interactions, leading to lower melting and boiling points compared to ionic compounds.
How is high melting and boiling points related to the structure of the compounds?
The structure of a compound will dictate what intermolecular forces hold the molecules together. The stronger these forces, the higher will be the boiling point.
Is it true or false that the crystal lattice of ionic compounds affects their melting and boiling points?
True. The crystal lattice structure of ionic compounds plays a significant role in determining their melting and boiling points. The stronger the forces holding the ions in the lattice together, the higher the melting and boiling points of the compound.
Why do ionic crystals have high melting points and high boiling points?
This is because of the strong force of attraction between the positively and negatively charged ions in the ionic lattice
How are the properties of molecular compounds poor conducters of electricity?
Because have lower melting points and boiling points
How do ionic compounds and molecular compounds differ in their relative melting and bioling points?
Ionic compounds tend to have higher melting and boiling points compared to molecular compounds. This is because ionic bonds are generally stronger than the intermolecular forces present in molecular compounds, such as van der Waals forces. The strong electrostatic forces between ions in an ionic compound require more energy to overcome, leading to higher melting and boiling points.
How are ionic and covalent compounds different in terms of melting and boiling point and electrical conductivity and hardness and brittleness?
Ionic compounds generally have higher melting and boiling points.
