1. a sample of ethanol has a mass of 75.0g, and a volume of 95.0mL what is the density of ethanol at 20C ?
2. aluminum has a density of 2.70 g/cm^3. what is the mass of a sample of aluminum with a volume of 12.75 cm^3
3. gold has a density of 19.3 g/cm^3. a cube of pure gold has a volume of 3.38 cm^3 and a mass of 30.30g. is this cube really gold? defend your answer!
bruh help pls , it’s due in like 30 min:/
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