substance
The term for matter made of only one type of element is "pure substance," while matter made of only one type of molecule is called a "pure compound."
There is no such thing. A positive molecule will only be attracted to a negative molecule.
An elemental molecule, like H2 or O2.
A compound or molecule.See the Related Questions for more information.
An empirical formula is a chemical formula containing only the number of atoms why is formed (ex.: C6H12), without any indication about the structure.
Diatomic or Diatomic Molecule- meaning containing only two atoms.
A chain hydrocarbon has a long molecule containing only carbon and hydrogen.
A hydrocarbon.
The term for matter made of only one type of element is "pure substance," while matter made of only one type of molecule is called a "pure compound."
an element
an element or a molecule
There is no such thing. A positive molecule will only be attracted to a negative molecule.
Elemental matter.
An elemental molecule, like H2 or O2.
atom
a substance
A pure substance contains only one kind of matter. It cannot be separated into other substances by physical means.