Complex sentence: For instance: there are two types of tin oxide--one is 88.1% tin and 11.9% oxygen and the other is 78.7% tin and 21.3% oxygen (tin (II) oxide and tin dioxide respectively).
Split into simpler sentences: For instance: there are two types of tin oxide. One is 88.1% tin and 11.9% oxygen and the other is 78.7% tin and 21.3% oxygen (tin (II) oxide and tin dioxide respectively).