Answer:
Temperature
Explanation:
The inner core is solid because it is made of very dense, or heavy, materials - like iron and nickel. Even though it is very hot, these materials don't "melt" very easily, so they stay solid.
Answer: molecular size or weight of the agent.
Explanation: The smaller the size, the faster it can diffuse out and the greater the rate of diffusion.
When an enzyme binds its substrate, it forms an enzyme-substrate complex. This complex lowers the activation energy of the reaction and promotes its rapid progression by providing certain ions or chemical groups that actually form covalent bonds with molecules as a necessary step of the reaction process.
H20- Water
H20 is a molecule because it is made up of atoms that have been chemically combined.
