In the reaction, the bonds in the methane and oxygen molecule come apart, the atoms rearrange and then re-bond to form water and carbon dioxide. The little number written at the lower right after an ...

Explain your reasoning in terms of a chemical reaction. It would be impossible to get the ingredients back from the cooked cake. This is because a chemical reaction has taken place between ...

Students will be able to explain that if two substances cause turn a pH indicator different colors ... change is a characteristic property of a substance and that a color change can also be used as ...