Ayush V

5. A reaction in which a substance combines with oxygen, releasing energy and often.
7. A single compound breaks down into two or more simpler substances.
10. A reaction where parts of two ionic compounds are exchanged.
12. A substance that speeds up a chemical reaction without being consumed.
14. The process by which metals are oxidized by substances in their environment.
15. A reaction that involves the transfer of electrons between two species.

1. A reaction where one element replaces another in a compound.
2. A reaction that involves the transfer of a proton from an acid to a base.
3. A reaction that releases heat to the surroundings.
4. A reaction where two or more substances combine to form a single product.
6. A chemical change that typically occurs in fats and oils when they are exposed to air, leading to unpleasant smells and tastes
8. A process where a substance loses electrons.
9. A reaction that absorbs heat from the surroundings.
11. A technique that uses a direct electric current to drive an otherwise non-spontaneous chemical reaction.
13. A solid that forms from a solution during a chemical reaction.