Chapter 6.1 Observing chemical change. Chemistry Chemistry is the study of matter and how it changes.

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Presentation transcript:

Chapter 6.1 Observing chemical change

Chemistry Chemistry is the study of matter and how it changes.

Matter can change Physical change: it is still the same Chemical change: it is a new substance – In a chemical change we can show the change occurring by writing the chemical equation: Reactant + Reactant  Product + Product

Atomic Bonding and Chemical Change A chemical change occurs when bonds between atoms break and new bonds form.

Changes in Energy EXOTHERMICENDOTHERMIC

Complete Page 221 #1-3

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