Answer:
-OOH
Explanation:
This forms an acid if it comes in contact with a metal
Answer:
breathing is inhaling and exhaling of gases between the cells in the environment.
respiration is the biochemical process that happens in the cell. this process releases energy from organic compounds that are then used for performing activities
Explanation:
Answer:
C.
Explanation:
It's the only one that seems most reasonable i hope this helps
Answer:
C. An electron has a high probability of being in certain regions.
Explanation:
In the electron cloud model, there are no electron-orbits around the nucleus but a cloud. This cloud has various densities with respect to distance from the nucleus. The most dense region of the cloud (which is the region close to the nucleus) is where electrons has the highest probability of existence.
The model explains that an electron a greater chance of being in the region closer to the nucleus. Thus, an electron has a high probability of being in certain region of the cloud about the central nucleus. And an electrostatic force exists between the nucleus and the electrons.