NO!!!!!
It is an element in its own right. Ylou will find it in ther Periodic Table.
No it is an element. Elements can't be broken down by chemical action.
Yes
Chemical Change
The correct answer would be Ammonia
food being broken down by enzymes
These two questions do not represent the same content.
Hexane is a compound. All chemical compounds can be broken down by chemical change (chemical reactions of many types) - not only hexane. All the other choices are elements which cannot be broken down by chemical changes.
No. It is an element and fundamentally already as "broken down" as possible.
Yes
All of the elements of the Periodic Table cannot be broken down into simpler substances.
of course, by the intermediate of chemical reactions
No. Sodium is an element and elements cannot be broken down (decomposed) by a chemical change.
yes they can
Chemical Change
The correct answer would be Ammonia
It is a physical change, the chemical form remain unchanged.
food being broken down by enzymes
These two questions do not represent the same content.