At room temperature and pressure there are gaseous, liquid and solid molecular covalent compounds. Examples
Gas: methane, CH4, ethylene, C2H4
Liquid benzene, C6H6, ethanol, C2H5OH
Solid: naphthalene, C10H8
The giant molecule covalent compounds such as silica are solids
It depends on the temperature. Ignoring the effects of pressure the following are true:-
It depends on the substance. Sugar, water and carbon dioxide are all examples of covalent compounds and they are solid, liquid and gaseous at room temperature respectively.
It could be anything:
Any state of matter is possible.
The usual state of a covalent compound (at room temperature) is liquid.
liquids and gasesare the usual states for a covalent bond at room temperature.
liquids or gases
Ionically bonded compounds are usually solid at room temperature. (Ionic bonds themselves are non-material and do not have any of the states of matter.)
Americium is a solid metal.
The usual state of a covalent compound (at room temperature) is liquid.
liquids and gasesare the usual states for a covalent bond at room temperature.
liquids or gases
Ionically bonded compounds are usually solid at room temperature. (Ionic bonds themselves are non-material and do not have any of the states of matter.)
Americium is a solid metal.
Ionic compounds are generally solids at room temperature.
Plasma is probably the answer you're looking for, although it is still baryonic matter, but it is not like the usual matter found on Earth.
This is the usual formula for elemental oxygen in its gaseous state. It could also be called a "diatomic oxygen molecule."
In most compounds oxygen will have an oxidation state of -2. The only exceptions are peroxides (-1), superoxides (-1/2), and compounds in which oxygen bonds with fluorine (+1 or +2).
Today fullerenes are not usually used compounds.
This is actually a rather vague question. Bonds remain the same unless the temperature is high enough to break them. The physical state of a covalent bond is one of unequally shared electrons, that's pretty much it. In a carbon dioxide molecule, for example, the shared valence electrons spend more time with the oxygen nuclei than with the carbon nucleus.
the usual state of both hydrogen and nitrogen are gas.