Chemical Reaction

Chemical Reaction

Process where reactants are transformed into products through the breaking and forming of chemical bonds between atoms

New substances

Chemical reactions create..

Chemical change

Process in which one or more substances are converted into one or more different substances

Chemical change

Raymong Chang and Kenneth A. Goldsby, 2013 Chemistry (11th ed)

Physical reaction / Change

Change in the state or properties of matter without change in chemical composition

Physical change / reaction

Change in the appearance, size, shape, or state without forming a new substance

Physical Reaction

Reversible

Physical Reaction

Temporary

Physical Reaction

Observable

Physical Reaction

Nonchemical

Chemical Reaction

Irreversible

Chemical Reaction

Transformative

Chemical Reaction

Reactive

Chemical Reaction

Permanent

Color change

1st way to identify a chemical reaction

Production of gas / bubbles

2nd way to identify a chemical reaction

Change in temperature (without external heat source)

3rd way to identify a chemical reaction

Formation of solid precipitate

4th way to identify a chemical reaction

Release of new light or odor

5th way to identify a chemical reaction

Change in color

One of the most common indicators and happens because a new substance with different properties has formed

Production of gas / bubbles

A common indicator which happens because a new substance has formed

Change in temperature (without external heat source)

Happens when heat is released or absorbed during the reaction, causing the substance’s temperature to change as well

Formation of a solid precipitate

Happens when two solutions are mixed and a solid substance forms that does not dissolve in the liquid

Precipitate

The solid that forms after a chemical reaction

Change in color

iron rusting

Production of gas / bubbles

Vinegar + baking soda

Change in temperature (without external heat source)

Magnesium burning

Formation of a solid precipitat

Silver nitrate solution + sodium chloride