Question

please help me...
give the correct answer​

Answer 1

Fe (Iron) - Element

CuS (Don't know) - Compound

NaCl (Not sure) - Compound

FeO (Ferrous Oxide?) - Compound

K (Potassium) - Element

ZnCl² (???) - Compound

NH³ (What is this?) - Compound

CaO (Calcium Oxide?) - Compound

AI (????) - Compound?

H²O (Water) - Compound

FeS (Ferrous ???) - Compound

MgO (Magnesium Oxide) - Element

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