Students recognize that a particular color change is a characteristic property of a substance and that a color change can also be used as evidence that a chemical reaction has occurred ... laundry ...

Every chemical reaction involves a change in energy because different substances hold different amounts of energy. During the reaction, bonds inside the substances that are reacting together must ...

When chemists design new chemical reactions, one useful piece of information involves the reaction's transition state—the ...

The technology, called Single-Molecule Atomic-Resolution Time-resolved Electron Microscopy (SMART-EM for short), lets ...

A common mineral, α-alumina, found abundantly in Earth's crust, may have played a critical role in initiating the chemical reactions necessary for life to begin. This exciting discovery ...

4. Show an animation to help explain why mass is conserved ... Explain that whether a process involves melting, dissolving, or a chemical reaction, all the atoms that were there before the process ...