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www.reference.com/article/causes-chemical-reactions-e0a11afda92e2466

Chemical reactions occur when two molecules collide with each other in a certain orientation and amount of force, which causes a chemical change due to the breaking and forming of the bonds between the atoms. Bonds are broken and formed due to the movement and sharing o...

www.reference.com/article/chemical-reaction-mean-4b67c210311221b9

The term "chemical reaction" refers to any process that changes a set of chemical substances to another. That is, the substances that are put into a chemical reaction are different, on a molecular level, from those that result.

www.reference.com/article/example-chemical-reaction-b7af503af7604513

A chemical reaction occurs when a cake bakes. The materials in the batter are changed into a different substance. If the cake burns, that is a separate chemical reaction. In fact, any type of burning, such as a piece of paper or a stick of wood, is a chemical reaction.

www.reference.com/article/happens-during-chemical-reaction-bb7f673f23253ab4

The molecules of one reactant are combined with those of another reactant to form a new substance during a chemical reaction. As the chemical bonds are broken, the positions of electrons change, resulting in a product with properties that are different from the properti...

www.reference.com/article/chemical-reactions-occur-5428df2e06b1ee1a

Chemical reactions occur because different types of molecules interact with each other to create new substances. Many of these interactions happen naturally and are not man-made. When one molecule interacts with another one, a chemical reaction occurs due to the breakin...

www.reference.com/article/four-types-chemical-reactions-9b0a7b620c73c768

Synthesis, decomposition, substitution and double displacement are four types of chemical reactions. A synthesis reaction is when two or more reactants combine to form one product.

www.reference.com/article/chemical-reaction-involve-699ff829bfeec6b3

Every chemical reaction involves a change. A chemical reaction occurs when one or more molecules combine with another to form a new chemical. Without that chemical change, the result cannot be called a reaction.