Question

part 3: match each diagram with its correct description. diagrams will be used once.

1. pure element - only one type of atom present
2. mixture of two elements - two types of uncombined atoms present.
3. pure compound - only one type of compound present.
4. mixture of two compounds - two types of compounds present.
5. mixture of a compound and an element.

Explanation:

Step1: Analyze Pure Element (1)

A pure element has only one type of atom. Diagram C has only white atoms (same type), so 1 matches C.

Step2: Analyze Mixture of Two Elements (2)

A mixture of two elements has two uncombined atom types. Diagram E has black and white uncombined atoms, so 2 matches E.

Step3: Analyze Pure Compound (3)

A pure compound has one type of compound (molecules with same atom combination). Diagram B has molecules with one black and two white atoms (consistent), so 3 matches B.

Step4: Analyze Mixture of Two Compounds (4)

A mixture of two compounds has two different compound types. Diagram A has two different molecule types (e.g., different colored central atoms), so 4 matches A.

Step5: Analyze Mixture of Compound and Element (5)

A mixture of compound and element has a compound (molecule) and an element (single atoms). Diagram D has a compound (molecule with black and white) and white single atoms (element), so 5 matches D.

Answer:

1. C
2. E
3. B
4. A
5. D