FeS2 is a compound. It is known as iron pyrite, also called fool's gold, and is made up of iron (Fe) and sulfur (S) atoms bonded together in a specific ratio.
Iron(III) chloride is an ionic compound.
the 2 in FeS2 means there are 2 sodium atoms and one iron atom
The S valence would be -1 when Fe(II) is 2+. In most cases sulfur has one negative and two possible positive valences: -2 and +4 or +6. So FeS2 is not a possible, or maybe a very rare, compound (Iron(II) persulfide?).
To calculate the grams of an element in a compound, you need to find the molar mass of the element and the compound. Then, use the formula: (mass of element/molar mass of compound) x molar mass of element. This will give you the grams of the element in the compound.
No such thing as a 'Compound element'. It is either a 'Compound' or an 'Element. Germanium is an element that appears in the Periodic Table as 'Ge'. NB A compound is a COMBINATION of two or more different elements.
Iron(III) chloride is an ionic compound.
element. Sulfur dioxide (SO2) is a compound
the 2 in FeS2 means there are 2 sodium atoms and one iron atom
The S valence would be -1 when Fe(II) is 2+. In most cases sulfur has one negative and two possible positive valences: -2 and +4 or +6. So FeS2 is not a possible, or maybe a very rare, compound (Iron(II) persulfide?).
KCl is a compound not an element.
Beryllium is an element. It is not a compound
cornstarch is a compound element.
it is a compound
Mixture
if it dissolves its a compound if not its an element.
NO = Nitrous Oxide - compound No = Nobelium - element
It is a compound Carbon is an element.