Chapter 3, Problem 89A

Interpretation Introduction

Interpretation:

Whether pizza is a homogeneous or a heterogeneous mixture needs to be determined.

Concept introduction:

A homogeneous mixture is one in which the different components mixed are difficult to be separated whereas in heterogeneous mixture, the different components can be easily separated.

Answer to Problem 89A

Pizza is a heterogeneous mixture.

Explanation of Solution

Heterogeneous mixture can be separated easily because all the components are in different phase.

In Solid-solid system the different components mixed are visible and can be handpicked so they are considered to be heterogeneous.

In pizza all the ingredients mixed can be separated easily, hence they are considered heterogeneous.

Conclusion

Mixtures where all the components are seen and can be easily separated are termed heterogeneous. Hence, pizza is also a heterogeneous mixture.