write true on the space provided if the statement is correct.Find the inappropriate word if the statment is false and put it in the space provided.
1)Catalysts speed up the chemical reactions but are not changed by them.
2)Heat,light or change in odor can indicate a physical change.
3)Activation energy is the minimum energy required for reactions to start.
4)Low temperature speeds up reaction rates.
5)A low concentration of chemicals slows reaction rate.
1)Catalysts speed up the chemical reactions but are not changed by them.
2)Heat,light or change in odor can indicate a physical change.
3)Activation energy is the minimum energy required for reactions to start.
4)Low temperature speeds up reaction rates.
5)A low concentration of chemicals slows reaction rate.
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1.true
2.true
3.false
4.true
5.false
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