The student is trying to see which substance (disinfectant 1, 2, 3, or the distilled water) can disinfect the most.
Answer:
The answer to your question is:
Explanation:
1 or more double bonds unsaturated
Usually solid at room temperature saturated
Molecules are tightly packed togheter saturated
Usually liquid at room temperature unsaturated
Most plant fats unsaturated
Most animal fats saturated
It has two layers.
Hope I could help :)