* Water is a compound, not an element. Elements are the basic building blocks of matter (e.g., hydrogen, oxygen, carbon). Water is formed by the chemical combination of two hydrogen atoms and one oxygen atom (H₂O).
* Distilled water is pure, but not the purest substance. While distillation removes impurities, it doesn't remove all trace contaminants. Other substances, like ultrapure water, have even fewer impurities.
Here's how you can correct the statement:
* "Distilled water is a highly purified form of water used in laboratory work."
* "Distilled water is a common solvent with a high degree of purity, making it useful for many laboratory procedures."