# For a homogeneous mixture, (i) what makes it homogeneous, and (ii) in what phase, solid, liquid, gas, are the components?

(i) $\text{What makes it homogeneous?}$
And (ii), $\text{in what phase are the components, solid, liquid, or gas.}$
The most common homogeneous mixture is the one we are breathing in now; what is it? What is the approximate composition of this mixture. What do we call an homogeneous mixture of metals that is in the solid phase? Hint, it starts with an $\text{a}$. Can you name a few common ones?