Ateacher 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

answer; talc and gypsum;

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

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