Iceland is a natural laboratory for observing sea floor spreading. Here, the rate of place motion is about 2.5 cm per year. Predict how iceland will change in one million years as a result of plate tectonics.

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.