A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Classically, chemical reactions encompass changes that strictly involve the motion of electrons in the forming and breaking of chemical bonds between atoms, and can often be described by a chemical equation.
Contributions by Vsmith, Dreg743, and Bensaccount.
This depends on how you cook it. If you boil an egg in water it is a physical change.
Cooking an egg is an example of a chemical change.
Ice melting is a physical change, because only the state has changed - it's still...
Ice melting is a physical change because only the state has changed.
Balance the following chemical reaction. Every space should have a number. Then...