ollowing integrand is the product of an odd and an even function. What is the result of the integral 5²₂t² sin(t) dt. -2 = 1 B. Ao = -1 C. Ao = 5/6 D. Ao = 0 E. None of the above

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Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.