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 ...

If they collide with enough energy, bonds can break and new bonds can form in a chemical reaction. The reactants just sit there until energy is added with the flame. The added energy is enough to make ...

Scientists have for the first time filmed the real-time growth and contraction of Palladium nanoparticles, opening new avenues for utilising and recycling precious metal catalysts.

Some chemical reactions result in a product that is in a different state to the reactants. An example of this is effervescence in which a reaction in a liquid produces bubbles of gas ...