Tuesday, October 29, 2013 Please clear your desk for you quiz.

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Presentation transcript:

Tuesday, October 29, 2013 Please clear your desk for you quiz. After your quiz, there will be a journal assignment.

How’s your Memory??? From your learning, write down what you remember about a molecule, compound, chemical formula, and chemical reaction. We will discuss these and then begin our lesson.

MOLECULE Combining of atoms Can still be an element like a molecule of oxygen O2 Can become a new substance through a chemical reaction like water H2O If a molecule contains 2 or more elements it is a compound!

Counting Atoms