Verified answer

1. What is a substance?

- A substance is matter which has a specific composition and specific properties. It's the material, or matter, of which something is made. Substances are physical things that can be seen, touched, or measured.

2. Give five examples of substances and classify them into elements and compounds.

- Water (Compound)

- Iron (Element)

- Salt (Compound)

- Diamond (Element)

- Sugar (Compound)

3. What is a mixture? Give its properties.

- A mixture is a material that is made up of two more chemical compounds or substances that do not combine together chemically.

Properties:

- The components of a mixture each keep their original properties.

- The separation of components can be easily done.

- The proportion of the components is variable.

4. Give five examples of a mixture.

- Crude oil

- Seawater

- Air

- Ink

5. What are the two kinds of mixtures? Explain how these two differ.

- Homogeneous mixture

- Heterogeneous mixture

A homogeneous mixture is a mixture of substances blended so thoroughly that you cannot see individual substances.

A heterogeneous mixture is a type of mixture that allows the components to be seen as two or more phases are present.

6. How do substance and mixture differ from one another?

- A substance is a collection of like particles/all one element or compound. A mixture is multiple substances mingled together.

Hope this helps!