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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.
Why do electrovalent compounds have high melting and boiling points?
Electrovalent compounds have high melting and boiling points because they have strong electrostatic forces of attraction between the positively charged metal ions and negatively charged non-metal ions. These forces require a significant amount of energy to overcome, resulting in high melting and boiling points for these compounds.
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 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.
Why do electrovalent compounds have high melting and boiling points?
Electrovalent compounds have high melting and boiling points because they have strong electrostatic forces of attraction between the positively charged metal ions and negatively charged non-metal ions. These forces require a significant amount of energy to overcome, resulting in high melting and boiling points for these compounds.
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.
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.
What is the difference between iconic compounds and covalent compounds?
Iconic compounds are formed by the transfer of electrons from one atom to another, resulting in the formation of ions held together by electrostatic forces. Covalent compounds are formed by the sharing of electrons between atoms, resulting in the formation of molecules held together by strong covalent bonds. Iconic compounds tend to have higher melting and boiling points compared to covalent compounds.
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.
Compared with ionic compounds solid molecular compounds generally?
have lower melting and boiling points, exist as discrete molecules, and do not conduct electricity in the solid state.
