A substance ‘X’ on heating gives Y and Z. What is X – An element

1.	A substance ‘X’ on heating gives Y and Z. What is X – An element or a compound? State two differences between an element and a compound.
Answer» As, X on heating gives two new substances Y and Z. Therefore, X is a compound Elements are made up of only one kind of atoms like gold, iron while compounds are made up of two or more kinds of atoms combined together in a definite proportion. Elements cannot be broken down into simpler substances by chemical reactions. However, compound during chemical reaction can break into simpler substances.

A substance ‘X’ on heating gives Y and Z. What is X – An element or a compound? State two differences between an element and a compound.

Answer»

As, X on heating gives two new substances Y and Z.
Therefore, X is a compound

Elements are made up of only one kind of atoms like gold, iron while compounds are made up of two or more kinds of atoms combined together in a definite proportion.
Elements cannot be broken down into simpler substances by chemical reactions. However, compound during chemical reaction can break into simpler substances.

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A substance ‘X’ on heating gives Y and Z. What is X – An element or a compound? State two differences between an element and a compound.

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