Question

2.The rusting of iron is considered to be a chemical reaction because:
(a) no heat is given out during the process (b) the rust cannot be changed back to iron (c) the rust looks different from the iron

Answer 1

Answer:

Rusting is an example of a chemical change. A chemical property describes the ability of a substance to undergo a specific chemical change. A chemical property of iron is that it is capable of combining with oxygen to form iron oxide, the chemical name of rust.

Answer 2

Answer:

chemical reaction is permanent so

The rusting of iron is considered to be a chemical reaction because the rust cannot be changed back to iron.