1. The mass of one liter of gasoline is equal to 0.75 kg, so the mass of 5 liters of gasoline is equal to 3.75 kg. TRUE FALSE
2. Mass is not proportional to volume. TRUE FALSE
3. To determine the density of oil, a balance and a stopwatch can be used. TRUE FALSE
4. The density ρ is equal to the ratio of volume to mass: ρ = m ÷ V. TRUE FALSE
5. The mass of 0.2 L of alcohol is equal to 158 g, so its density is equal to 790 g/L. TRUE FALSE
6. The mass of 0.5 L of gasoline is equal to 375 g, so its density is equal to 750 kg/L. TRUE FALSE
7. The mass of 0.1 L (0.1 dm3) of aluminum is equal to 270 g, so its density is equal to 27 g/L. TRUE FALSE
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