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These Are the Densities of Some Common Plastics: PET 1

Question 56

Multiple Choice

These are the densities of some common plastics: PET 1.38 to 1.39 g/mL;HDPE 0.95 to 0.97 g/mL;LDPE 0.90 to 0.91 g/mL.Based on these densities,which plastic/s will sink in an ethanol/water mixture that has a density of 0.94 g/mL?


A) PET only
B) PET and HDPE
C) HDPE only
D) LDPE only

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