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Molecular compounds don't tend to have any free electrons (delocalised electrons) therefore they cannot conduct electricity and cannot carry the energy around the compound. This is also the case as a liquid because the outer shell still hasn't lost any electrons ready to be free and although the bonds have been broken there is no delocalised electrons.
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Compounds with what bonds are poor conductors of electricity even when melted?
Covalent compounds are poor conductors of electricity even when melted because they do not have free-moving charged particles, such as ions or delocalized electrons, to carry an electric current. The strong covalent bonds in these compounds tend to hold the atoms together tightly, preventing the flow of electric charge.
How does the molecular motion of a substance change as it transitions from liquid to gas?
As a substance transitions from liquid to gas, the molecular motion increases. In the liquid state, molecules move more freely but are still close together. When the substance becomes a gas, the molecules move even more rapidly and are much farther apart.
Compounds with the same chemical composition may have different densities because they?
have different molecular arrangements or crystal structures that affect how closely the atoms are packed together. This can result in variations in the density of the compounds, even though they have the same chemical composition.
Why some compound do not have molecular formula?
Once you get into the realm of compounds you are really looking at two types---ionic and molecular. Molecular compounds are made up of all the same type of molecule, and those molecules consist of a series of atoms covalently bonded together. The molecular formula of a molecular compound gives the number of each type of atom that makes up the molecule. Ionic compounds are different---there are no definable molecules present, just lattices of alternating positive and negative ions (charged atoms). So unlike molecular compounds there is no definable subunit in an ionic compound. Instead ionic compounds are represented by the simplest ratio of ions in the compound. For instance, in table salt there is one sodium ion per chlorine ion so the formula is NaCl. that does not mean there are little NaCl molecules making up the compound, just that the ratio of those two ions is 1:1. In calcium chloride there are two chloride ions for every calcium ion, so its formula is CaCl2. So the simple answe to the question is that molecular formulas are not used for ionic compounds because they are not comprised of molecules. That does not keep people (even chemists) from referring to the formulas of ionic compounds as "molecular formulas" but it is technically a misnomer. Simply calling them "formulas" or "ionic formulas" would be more appropriate.
How can two compounds make from the same element be different?
Isomers are compounds that exist in different molecular arrangements of atoms of the same elements and having identical atomic weights. Although isomers of a compound contain the same atoms in their molecules, the atoms are arranged in a different molecular structure and the isomers may differ in their physical, chemical, and biological properties.
Compounds with what bonds are poor conductors of electricity even when melted?
Covalent compounds are poor conductors of electricity even when melted because they do not have free-moving charged particles, such as ions or delocalized electrons, to carry an electric current. The strong covalent bonds in these compounds tend to hold the atoms together tightly, preventing the flow of electric charge.
How many types of compound are there and name?
There are two main types of compounds: molecular compounds and ionic compounds. Molecular compounds are formed by sharing electrons between atoms, while ionic compounds are formed through the transfer of electrons between atoms. Examples of molecular compounds include water (H2O) and carbon dioxide (CO2), while examples of ionic compounds include sodium chloride (NaCl) and potassium iodide (KI).
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
How does the molecular motion of a substance change as it transitions from liquid to gas?
As a substance transitions from liquid to gas, the molecular motion increases. In the liquid state, molecules move more freely but are still close together. When the substance becomes a gas, the molecules move even more rapidly and are much farther apart.
What types of atoms are involved in molecular compounds?
atoms that form molecular compounds form them :) A molecular compound is a compound composed of molecules. Two or more atoms make a molecule. The molecules of a molecular compound contains atoms that are convalently bonded.
How are the melting points of ionic compounds different from molecular compounds?
Very much higher.
What changes in molecular attraction occur as water goes from a solid to a liquid to a gas?
The changes occuring in molecular attraction as water goes from a solid to a liquid is that the bonds between the molecules weaken and the molecules move further away from each other. Once they become a gas, their bonds break and the molecules float freely around.
Compounds with the same chemical composition may have different densities because they?
have different molecular arrangements or crystal structures that affect how closely the atoms are packed together. This can result in variations in the density of the compounds, even though they have the same chemical composition.
Why some compound do not have molecular formula?
Once you get into the realm of compounds you are really looking at two types---ionic and molecular. Molecular compounds are made up of all the same type of molecule, and those molecules consist of a series of atoms covalently bonded together. The molecular formula of a molecular compound gives the number of each type of atom that makes up the molecule. Ionic compounds are different---there are no definable molecules present, just lattices of alternating positive and negative ions (charged atoms). So unlike molecular compounds there is no definable subunit in an ionic compound. Instead ionic compounds are represented by the simplest ratio of ions in the compound. For instance, in table salt there is one sodium ion per chlorine ion so the formula is NaCl. that does not mean there are little NaCl molecules making up the compound, just that the ratio of those two ions is 1:1. In calcium chloride there are two chloride ions for every calcium ion, so its formula is CaCl2. So the simple answe to the question is that molecular formulas are not used for ionic compounds because they are not comprised of molecules. That does not keep people (even chemists) from referring to the formulas of ionic compounds as "molecular formulas" but it is technically a misnomer. Simply calling them "formulas" or "ionic formulas" would be more appropriate.
How can two compounds make from the same element be different?
Isomers are compounds that exist in different molecular arrangements of atoms of the same elements and having identical atomic weights. Although isomers of a compound contain the same atoms in their molecules, the atoms are arranged in a different molecular structure and the isomers may differ in their physical, chemical, and biological properties.
Are the particles in a rock still solid even if it dissolves?
no the substance is aqueous. oh and its never the particles that are solid/ liquid... they don't really change, its just the molecular arrangement and the intermolecular forces that change
Are organic compounds solids at room temperature?
because they have low melting points and low boiling points . ao as a result, they are gases at room tempertureansw2. Please research your answer. Even as far as a dictionary.Organic compounds are compounds containing carbon, and used in living matter.
