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WHAT IS CHEMISTRY . When you hear the word Chemistry what do you think of?. Structure, composition and properties. Reactions and Energy. Atoms and molecules Protons, neutrons and electrons Elements, compounds, and mixtures Acids, bases and salts. Chemical Reactions Nuclear reactions
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When you hear the word Chemistry what do you think of? Structure, composition and properties Reactions and Energy • Atoms and molecules • Protons, neutrons and electrons • Elements, compounds, and mixtures • Acids, bases and salts • Chemical Reactions • Nuclear reactions • Fission and fusion • Energy
Definition of the word chemistry • A physical science which deals with the structure, composition and properties of matter. It also deals with the changes in which matter undergoes and the energy which accompanies these changes.