0
false
they tend to have low boiling points
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Why does 0.300 M KCl have a higher boiling point that 0.500 M glucose?
KCl is an ionic compound and glucose is a molecular compound. Ionic compounds have higher boiling points than molecular compounds.
Why do nitro compounds have high boiling points in comparison with other compounds of same molecular mass?
Due to strong dipole dipole interaction
Molecular compounds boil at much higher temperatures than do ionic compounds true or false?
This is false. Ionic compounds have higher boiling points than molecular compounds. For example, the boiling point of the ionic compounds copper(II) oxide, CuO, and sodium chloride, NaCl are 2,000 degrees C and 1,413 degrees C, respectively. The boiling point of the molecular compounds carbon tetrachloride, CCl4, and water, H2O are 76.72 degrees C and 100 degrees C, respectively.
What are the propeites of a molecular compound?
molecular compounds have relatively low boiling points but the bigger the molecult the bigger the boiling point (this is van der waals forces) If they are soluble in water, they are nonelectrolytes, because they do not produce and ions when dissolved in water. If they are solids, they tend to be soft, and they are nonconductors of electricity in solid form. Many are liquids or gases at room temperature. Examples include water, carbon dioxide, ammonia, alcohol, and sugar.
Why do mixtures not have sharp melting points and boiling points?
Because they are not pure compounds !
How are the melting points and the boiling points of molecular compounds different from ionic compounds?
Ionic bonds are significantly resistant to heat, while molecular bonds are broken more easily with the addition of heat energy. Due to this, ionic compounds have much higher boiling points than molecular substances in most cases.
How do ionic compounds and molecular compounds differ in their relative melting and bioling points?
Ionic compounds have higher melting and boiling points than molecular compounds do. The electronegativity difference in ionic compounds makes their bond much stronger.
How are the properties of molecular compounds poor conducters of electricity?
Because have lower melting points and boiling points
Do simple molecular substances have high or low melting and boiling points?
Yes, molecular solids have relatively low melting points.
Why does 0.300 M KCl have a higher boiling point that 0.500 M glucose?
KCl is an ionic compound and glucose is a molecular compound. Ionic compounds have higher boiling points than molecular compounds.
Why do molecular compounds have low melting points and low boiling points relative ionic substances?
The bonds in the molecule are weaker.
How are the melting points and boiling point of molecular compounds different from ionic compounds?
they have diferent temp. also the ionic compounds dont melt they steam
What are some properties of molecular compounds?
Simple molecular structures like H2O and CO2 have the following properties: 1) Physical state: usually liquids and gases at room temperature due to weak intermolecular forces 2) Melting and boiling points: low (below 2000 C) melting and boiling points due to weak intermolecular forces 3) Electrical conductivity: cannot conduct electricity because there are no free electrons 4) Solubility: insoluble in water, but soluble in organic substances such as petrol Macromolecular structures such as diamond and SiO2 have the following properties: 1) Physical state: hard solids at room temperature due to the many strong covalent bonds holding the atoms together 2) Melting and boiling points: high melting and boiling points due to the many strong covalent bonds that must be broken before the substance can change state 3) Electrical conductivity: cannot conduct electricity because there are no free electrons 4) Solubility: insoluble
Why do nitro compounds have high boiling points in comparison with other compounds of same molecular mass?
Due to strong dipole dipole interaction
Ionic compounds have boiling points that are often above?
Ionic compounds have boiling points of
Molecular compounds boil at much higher temperatures than do ionic compounds true or false?
This is false. Ionic compounds have higher boiling points than molecular compounds. For example, the boiling point of the ionic compounds copper(II) oxide, CuO, and sodium chloride, NaCl are 2,000 degrees C and 1,413 degrees C, respectively. The boiling point of the molecular compounds carbon tetrachloride, CCl4, and water, H2O are 76.72 degrees C and 100 degrees C, respectively.
Do ionic compounds have lower boiling points than polar covalent?
Ionic compounds have higher boiling points than covalent compounds.
