Students explore the concept that chemical reactions involve the breaking of bonds between atoms in the reactants, and the rearrangement and rebonding of these atoms to make the products. Students ...

The speed of a chemical reaction is affected ... It can be calculated by measuring changes in reactants/products. Atomic structure Atoms are made from protons, neutrons and electrons.

Instead, the atoms rearrange themselves to form new chemicals. This is known as a chemical change. The other kind of change in chemistry is a physical change, which is when a substance changes ...

and 6 oxygen atoms The chemical equation is balanced because the same type and number of atoms are in the reactants and products. Lesson 6.2: Controlling the Amount of Products in a Chemical Reaction ...