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1. which of the following is not a chemical change?
a) leaves turning color
b)fruit ripening
c) silver tarnishing
d) food coloring dissolving in water

2. butter is melted in a pan. which of the following is true about the change?
a) it is a physical change the releases energy
b) it is a chemical change the absorbs energy
c) it is a physical change that absorbs energy
d) it is a chemical change for which there is no change in energy

3. the energy stored in the bonds between atoms is
a) chemical energy
b) thermal energy
c) electerial energy
d) endothermic energy