If a substance is not chemically pure, it is either a heterogeneous mixture or a homogeneous mixture. If its composition is uniform throughout, it is a homogeneous mixture.
Answer:
is the symbol for an oxide ion
Use the equation for density :
Density = mass / volume
Density = 120 / 480
Density = 0.25
In order to determine the mole ratio, you need to begin with a balanced chemical equation.
