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What are the properties of organic compounds determined by?
The properties of organic compounds is determined by the shape of molecule and the positive and negative charges existing on the molecule. The factor of varying electro-negativity is also very important in determining the properties.
What is an accurate comparison of the properties of compounds and the properties of the elements that the compounds contain?
Compounds have unique properties distinct from their constituent elements, as they exhibit new chemical and physical characteristics through chemical bonding. The properties of compounds are determined by their molecular structure and interactions between atoms. In contrast, the properties of elements are based on their atomic structure and individual chemical behavior.
Is a brittle compound a molecular compound?
No, a brittle compound does not necessarily indicate it is a molecular compound. Brittle compounds can be either molecular or ionic, depending on their chemical bonding. Brittle molecular compounds typically have covalent bonds, while brittle ionic compounds have ionic bonds.
Is Compounds that are similar to water in molecular mass all exist as solids true or false?
False. Compounds that are similar to water in molecular mass can exist in various states of matter depending on their chemical properties. For example, compounds like ethanol and methanol, which have similar molecular masses to water, can exist as liquids at room temperature.
What holds covalently bonded atoms together and what are the properties of molecular compounds?
In a covalent bond the electrons are shared between atoms.
What are the difference in conductivity between ionic and molecular compounds?
Ionic compounds typically have higher conductivity than molecular compounds because ionic compounds dissociate into ions in solution, allowing for the flow of electric current. Molecular compounds, on the other hand, do not dissociate into ions in solution and therefore exhibit lower conductivity.
Why is the conductivity value of deionized water subtracted from the conductivity values of molecular compounds?
The conductivity value of deionized water is subtracted from the conductivity values of molecular compounds to remove the background contribution of water to the conductivity measurement. This subtraction allows for a more accurate assessment of the conductivity solely due to the molecular compound being tested.
What accounts for the observed differences in ionic and molecular compounds properties?
The differences in properties between ionic and molecular compounds are primarily due to the nature of their chemical bonding. Ionic compounds have strong electrostatic attractions between oppositely charged ions, leading to high melting and boiling points, as well as conductivity in solution. In contrast, molecular compounds have weaker intermolecular forces, resulting in lower melting and boiling points, and most are not conductive in solution.
The properties of both ionic and molecular compounds are related to the?
The properties of both ionic and molecular compounds are related to their chemical bonding. Ionic compounds have strong electrostatic interactions between positively and negatively charged ions, resulting in high melting points and conductivity when dissolved in water. Molecular compounds have covalent bonds between atoms and tend to have lower melting points, are usually not conductive, and can exist as gases, liquids, or solids at room temperature.
How are the properties of molecular compounds different from those of ionic cmpounds?
Molecular (covalent) compounds are not dissociated in water.
What is a property of molecular compounds?
Molecular compounds are composed of neutral molecules, their electrical conductivity is generally quite poor, whether in the solid or liquid state.
What are the properties of molecular compound?
Molecular compounds generally do not conduct electricity and have low melting points.
What is the electrical conductivity of ionic compounds?
Ionic compounds typically have low electrical conductivity in the solid state because the ions are tightly held in a fixed lattice structure. However, when ionic compounds are melted or dissolved in water, the ions are free to move and conduct electricity.
What are properties of a molecular compound?
Molecular compounds are built upon molecules that consist of more than one element such as water (H2O) or carbon dioxide (CO2). The common properties are low melting and boiling points, poor electrical and thermal conductivity, soft or brittle solid forms and low enthalpies of fusion and vaporization.
How do ionic and molecular compounds differ in physical properties?
Ionic compounds have higher melting and boiling points than molecular compounds due to the strong electrostatic forces between ions. Ionic compounds are usually solid at room temperature, while molecular compounds can be solid, liquid, or gas. Ionic compounds conduct electricity when dissolved in water, while molecular compounds do not.
What accounts for the observed differences in the properties of ionic and molecular compounds?
t Answer Well firstly, ionic compounds form from metals bonding with non metals. Molecular/covalent form from non metals bonding with non metals. A strong electrostatic force between ionic compounds results in them having high melting points. A weaker electrostatic force between molecular compounds results in them having lower melting points and thus weaker bonds. Ionic compounds are made up of ions, so will conduct electricity. Covalent compounds only share electrons and so are not ions, and will not conduct electricity.
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
