分解

1. Origins, structure, and basic meaning

• Structure: 分解 (ぶんかい) is an action noun for taking a machine or furniture apart into component pieces.
• Basic usage: 時計を分解して調べる takes a broken clock apart for inspection, while 棚は分解すれば積める makes disassembly the condition allowing transport by car.

2. Common pitfalls and similar expressions

• Inspection purpose and transport condition
  • 時計を分解する is a physical act for internal inspection, whereas 分解すれば is a possible condition before action. These examples do not concern chemical decomposition.