Question

we do: you add water, salt and sand to a bottle and shake it up. what type of matter is present in the bottle? a) pure - element b) pure - compound c) mixture - heterogeneous d) mixture - homogeneous explain your selection.

Explanation:

A pure - element consists of only one type of atom, and a pure - compound is made up of two or more elements chemically combined in a fixed ratio. Here, water, salt, and sand are just physically combined. A homogeneous mixture has a uniform composition throughout, while a heterogeneous mixture has a non - uniform composition. The mixture of water, salt, and sand has visible different parts (sand doesn't dissolve completely and can be seen as distinct particles), so it is a heterogeneous mixture.

Answer:

c) Mixture - Heterogeneous