14.1 Chemical Reactions A chemical reaction is the process of breaking of Atoms are Chemical properties of new substances When you make pizza, which changes.

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Presentation transcript:

14.1 Chemical Reactions A chemical reaction is the process of breaking of Atoms are Chemical properties of new substances When you make pizza, which changes are

Physical vs. Chemical Change The process of making pizza involves some The processes used by yeast in the dough or by the gas stove to bake the pizza are Baking, burning, rusting, rotting, digestion are

Observations of a Chemical Change

Reactants and Products In chemical reactions, we start with The Reactants are the substances. The Products are the substances which result from the chemical reaction. Basic format of chemical equation:

Writing word equations and switching to chemical equations When beryllium chloride reacts with sodium bromide, beryllium bromide and sodium chloride are formed.

Law of Conservation of Mass The combined mass is any . Burning wood and oxygen is converted into carbon dioxide and water. 1000g 100g 500g 600g