No
Certainly - with the right chemical reactions. To separate the elements in a compound, you need appropriate chemical reactions to split the bonds of the molecules.
compound
chalk is a compound
Hydrogen flouride is a compound.
No. If it is written Ar, it is the element Argon. If not, it may be the acronym for a longer-named compound, but it cannot be a chemical formula.
C2H6 (ethane) is neither a mixture nor an element. It is a molecular compound since it contains different atoms but is not mixed with other compounds.
No. If you burn an element, you will turn it into a compound (most commonly [element burnt] oxide). Which will not be an element.
The silver nitrate, but this is a dangerous compound.
element. Sulfur dioxide (SO2) is a compound
KCl is a compound not an element.
cornstarch is a compound element.
Beryllium is an element. It is not a compound
it is a compound
Mixture
if it dissolves its a compound if not its an element.
NO = Nitrous Oxide - compound No = Nobelium - element
No, energy is NOT an element, a compound or a mixture.
It is a compound Carbon is an element.