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1. Which of the following represnts a chemical change? Ice Melting metal expanding when heated

/in /by

1. Which of the following represnts a chemical change? Ice Melting
metal expanding when heated

dry ice, solid carbon dioxide, undergoing sublimation

the burning of gasoline

2. Which of the following is not a physical change?

Metal expanding when heated

dry ice, solid carbon dioxide ,undergoing sublimation

the vaporization of gasoline

ice melting

none of the above

 
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