In class activity 1 • Are atoms made of molecules, or are molecules made of atoms?
In class activity 2 • How does the arrangement of the particles in a solid differ from those in a gas?
• Molecules of a solid are held in fixed 3 dimensional arrangement. Those in a gas move independently of one another
In class activity 3 Physical
Chemical
In class activity 4 • What changes in a chemical reaction?
• Rearrangment of atoms, different bonding after chemical reaction • Physical or Chemical change? • Choose which is which A or B
In-class activity 5
In class activity 6
• How many atoms are in a sulfur molecule with the formula S8?
• What would be the name of a compound with the formula KF?
• eight
• Potassium Fluoride
• Is it an element or a compound?
• element
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