Answer:

1.A chemical substance is composed of one type of atom or molecule. A mixture is composed of different types of atoms or molecules that are not chemically bonded. A heterogeneous mixture is a mixture of two or more chemical substances where the various components can be visually distinguished.

2.Yes,because water is a liquid or through filterizing

3.Yes,because when you wait longer time thing in the water will settle down and the water will be clear.

4.Decantation can be used to separate immiscible liquids that have different denseties.For example,when a mixture water in oil is present in a beaker,a distint layer between the two consistency is form,with the only layer floating on top of the water layer

5.Oil and water don't mix because oil is a compass of nonpolar molecules,and water molecules are polar.Since they can't mix,the denser substances to the bottom,and the less dense substance floats on top.Oil is less dense than water,so it floats.

Soy sauce is mostly water,so oil floats on top of it

6.Yes

7.because Cooking oil is much more denserthan soy Sauce and we can use the technique called Decantation.

8.Immiscible

Liquids that don't mix and stay mixed are said to be immiscible.