HO 1.2 Pure Substances and Mixtures - HO 1 - Pure Substances and ... - Free Printable

Problem Analysis:

The task involves identifying different types of substances and mixtures based on the provided diagrams. The key concepts to understand are:

1. Pure Substance: A substance that has a fixed composition and distinct properties.
2. Mixture: A combination of two or more substances that are not chemically combined.
3. Pure Element: A substance composed of only one type of atom.
4. Pure Compound: A substance composed of two or more different types of atoms bonded together in a fixed ratio.
5. Single Atoms Only: A collection of individual atoms, not bonded into molecules.
6. Mixtures of Elements: A mixture containing two or more different elements.
7. Mixtures of Compounds: A mixture containing two or more different compounds.
8. Mixtures of Compounds and Elements: A mixture containing both compounds and elements.

Solution Approach:

We will analyze each diagram and categorize it based on the definitions above.

#### Diagram Analysis:
- A: All circles are the same (white). This represents a pure element.
- B: Different clusters of black and white shapes. This represents a mixture of elements.
- C: All circles are the same (white). This represents a pure element.
- D: All dots are the same (black). This represents a pure element.
- E: A mixture of white circles and black dots. This represents a mixture of elements.
- F: A mixture of black and white shapes. This represents a mixture of elements.
- G: A mixture of black and white shapes. This represents a mixture of elements.
- H: All circles are the same (white). This represents a pure element.
- I: All circles are the same (white). This represents a pure element.
- J: All circles are the same (white). This represents a pure element.
- K: A mixture of white circles and black dots. This represents a mixture of elements.
- L: A mixture of white circles and black dots. This represents a mixture of elements.
- M: A mixture of white circles and black dots. This represents a mixture of elements.
- N: All dots are the same (black). This represents a pure element.
- O: A mixture of white circles and black dots. This represents a mixture of elements.
- P: A mixture of white circles and black dots. This represents a mixture of elements.
- Q: All dots are the same (black). This represents a pure element.
- R: A mixture of white circles and black dots. This represents a mixture of elements.

#### Categorization:
1. Pure Substance: A, C, D, H, I, J, N, Q
2. Mixture: B, E, F, G, K, L, M, O, P, R
3. Pure Element: A, C, D, H, I, J, N, Q
4. Pure Compound: None (all diagrams show single types of atoms or mixtures)
5. Single Atoms Only: A, C, D, H, I, J, N, Q
6. Mixtures of Elements: B, E, F, G, K, L, M, O, P, R
7. Mixtures of Compounds: None (no compounds are present)
8. Mixtures of Compounds and Elements: None (no compounds are present)

Final Answer:

1. Pure Substance: A, C, D, H, I, J, N, Q
2. Mixture: B, E, F, G, K, L, M, O, P, R
3. Pure Element: A, C, D, H, I, J, N, Q
4. Pure Compound: None
5. Single Atoms Only: A, C, D, H, I, J, N, Q
6. Mixtures of Elements: B, E, F, G, K, L, M, O, P, R
7. Mixtures of Compounds: None
8. Mixtures of Compounds and Elements: None

\boxed{
\begin{array}{l}
1. \text{Pure Substance: } A, C, D, H, I, J, N, Q \\
2. \text{Mixture: } B, E, F, G, K, L, M, O, P, R \\
3. \text{Pure Element: } A, C, D, H, I, J, N, Q \\
4. \text{Pure Compound: } \text{None} \\
5. \text{Single Atoms Only: } A, C, D, H, I, J, N, Q \\
6. \text{Mixtures of Elements: } B, E, F, G, K, L, M, O, P, R \\
7. \text{Mixtures of Compounds: } \text{None} \\
8. \text{Mixtures of Compounds and Elements: } \text{None} \\
\end{array}
}