Which of the following materials would not be used as a dielectric material in a capacitor? Tantalum, polystyrene, paper or aluminum foil

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

What are the major types of a chemical compound

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?