Question

match the chemical formula with the appropriate model.

methane (ch₄)

methanol (ch₃oh)

ethane (c₂h₆)

propane (c₃h₈)

Explanation:

To solve this, we analyze each compound's structure:

1. Methane (CH₄): Has 1 C and 4 H. The model with 1 black (C) and 4 gray (H) atoms (second model) matches.
2. Methanol (CH₃OH): Has 1 C, 3 H, 1 O (red), 1 H. The model with a red atom (O) (fourth model) matches.
3. Ethane (C₂H₆): Has 2 C and 6 H. The model with 2 black (C) atoms (third model) matches.
4. Propane (C₃H₈): Has 3 C and 8 H. The model with 3 black (C) atoms (first model) matches.

Matching:

• Methane (CH₄) → Second model (1 C, 4 H)
• Methanol (CH₃OH) → Fourth model (1 C, 3 H, 1 O, 1 H)
• Ethane (C₂H₆) → Third model (2 C, 6 H)
• Propane (C₃H₈) → First model (3 C, 8 H)

(Note: The "models" refer to the molecular diagrams: first diagram (3 C) for propane, second (1 C, 4 H) for methane, third (2 C) for ethane, fourth (1 C, 1 O) for methanol.)

Answer:

To solve this, we analyze each compound's structure:

1. Methane (CH₄): Has 1 C and 4 H. The model with 1 black (C) and 4 gray (H) atoms (second model) matches.
2. Methanol (CH₃OH): Has 1 C, 3 H, 1 O (red), 1 H. The model with a red atom (O) (fourth model) matches.
3. Ethane (C₂H₆): Has 2 C and 6 H. The model with 2 black (C) atoms (third model) matches.
4. Propane (C₃H₈): Has 3 C and 8 H. The model with 3 black (C) atoms (first model) matches.

Matching:

• Methane (CH₄) → Second model (1 C, 4 H)
• Methanol (CH₃OH) → Fourth model (1 C, 3 H, 1 O, 1 H)
• Ethane (C₂H₆) → Third model (2 C, 6 H)
• Propane (C₃H₈) → First model (3 C, 8 H)

(Note: The "models" refer to the molecular diagrams: first diagram (3 C) for propane, second (1 C, 4 H) for methane, third (2 C) for ethane, fourth (1 C, 1 O) for methanol.)