A teacher makes the following statement. “Gasoline boils at a relatively low temperature (about 150°C). The kerosene is removed
at around 200°C, followed by diesel oil at 300°C and fuel oil at around 370°C.” What topic is the teacher most likely talking about? distillation of a mixture filtration of a pure substance evaporation of a mixture sorting of a pure substance
Explanation: A children's liquid medicine contains 100 mg of the active ingredient in 5 mL . If a child should receive 150 mg of the active ingredient, how many milliliters
