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Question:

Physical or chemical change ? Help?

Copper sheet acquired a green color over the yearsThe page is white Platinum does not react with oxygen at room temperaturegallium metal melts in your hands

Answer:

you'll need to ask old greg
Bartender, I'll have what he's drinking
1. Physical 2. Physical 3. ? 4. Chemical
Copper sheet acquired a green color over the years chemical The page is white physical Platinum does not react with oxygen at room temperature chemical gallium metal melts in your hands (but not in your mouth) . only true for MM's made of gallium physical

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