When a leaf of fresh sage or mint is rubbed between your hands, the fragrance is immediately obvious. Write a theoretical explanation for this observation. How does the Kinetic Molecular Theory relate to this?

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?

The diagram shows the relationship between scientific disciplines. the names of some scientific disciplines have been removed from the boxes. which scientific discipline belongs in the blue box? a. physics b. biology c. chemistry d. metallurgy

What does a numerical subscript following an element in a chemical formula mean?