1.15 ¿Cual número es mayor en cada uno de los siguientes pares?

A: 7.2 x 103 o 8.2 x 102 cm
B: 4.5 x 10-4 kg o 3.2 x 10-2 kg
C: 1 x 104 L o 10-4 L
D: 0.000 52 m o 6.8 x 10-2 m

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

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