Question

Classify each of the following materials as an element, compound, heterogeneous mixture, or homogeneous mixture.(a)saladelementcompound heterogeneous mixturehomogeneous mixture(b)ironelementcompound heterogeneous mixturehomogeneous mixture(c)nitrous oxideelementcompound heterogeneous mixturehomogeneous mixture(d)mouthwashelementcompound heterogeneous mixturehomogeneous mixture

Answer 1

White wine is a homogeneous mixture, mercury is an element, ranch-style salad dressing is a heterogeneous mixture, and table sugar is a compound.

Substance (a) white wine can be classified as a homogeneous mixture (solution) because it appears to be uniform throughout and consists of multiple substances dissolved in each other.

Substance (b) mercury is an element because it is a pure substance that cannot be broken down into simpler substances by chemical means.

Substance (c) ranch-style salad dressing is a heterogeneous mixture because it consists of visibly different components, such as oil and vinegar, that are not uniformly distributed.

Substance (d) table sugar (sucrose) is a compound because it is composed of two or more elements chemically bonded together in a fixed ratio.

Answer 2

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