Marble Mixture Or Pure Substance

Classify each of the following as a pure substance or a mixture.

Marble mixture or pure substance.

A concrete b tomato juice c marble d seawater e iron. Marble is a type of limestone so is a. Just like granite marble is a mixture. As a mineral it usually contains contaminants which add structure grain and color.

Marble is a type of limestone so is a. Mixtures are present almost everywhere on earth. This makes it a heterogeneous mixture. However unlike granite marble is typically more than 90 calcium carbonate so it might count as a pure substance.

C marble if extremely pure is calcium carbonate which is a pure substance compound. Just like granite marble is a mixture. An atom is the smallest particle of an element that still has all the properties of the element. If it s a mixture state whether it is heterogeneous or homogeneous.

Look at rocks the ocean rivers or even the atmosphere. A b concrete and tomato juice are heterogeneous mixtures. A pure substance can be either an element or a compound but the composition of a pure substance doesn t vary. However unlike granite marble is typically more than 90 calcium carbonate so it might count as a pure substance.