Respuesta :
We know that the definition of each of the possible answers are:
• Element is the simplest subtance that cannot be broken down by any chemical methods.
,• Compound is made of two or more elements chemically combined together.
,• Mixture is made from two or more substances physically combined together. Now, a homogeneous mixture has a uniform composition and appearance while heterogeneous mixture comprises two or more substances that can be distinctly observed.
With all this in mind we have that:
A salad is a heterogeneous mixture.
Iron is an element.
Nitrous oxide is a compound.
Mouthwash is a heterogeneous mixture
