H2O (water)
they all contain 2 substances or more
2 elements make a compound.
Yes, except that "element" should be pluralized; a compound always has at least two elements.
Aluminium oxide is a compound 'cos it's made of 2 kinds of atoms. If it has to be an element, it has to be made of same kind of atoms like graphite/diamond/H2(gas).
That's because of the way "compound" is defined. If atoms of an element combine with other atoms of the SAME element, then it's not called a "compound".
An element, atom, crystal, compound, and molecule are all forms of matter.
It is an element a compound requires 2 elements!
it is an element as it contains same kind of atoms
A compound is a combination of more than one element. (In an "element", all atoms - except perhaps for small amounts of impurities - have the same number of protons.)A compound is a combination of more than one element. (In an "element", all atoms - except perhaps for small amounts of impurities - have the same number of protons.)A compound is a combination of more than one element. (In an "element", all atoms - except perhaps for small amounts of impurities - have the same number of protons.)A compound is a combination of more than one element. (In an "element", all atoms - except perhaps for small amounts of impurities - have the same number of protons.)
2 or more
Compound. H2O contains 2 elements. Hydrogen, of which there are 2, and Oxygen.
An element is only a chemical element, only a single type of atoms.A compound contain 2 or more atoms of different atoms.Matter can be an element, a compound or a mixture of compounds.