Answer:
See explanation and image attached
Explanation:
We know that some substituted benzene reacts faster than benzene towards electrophillic substitution. This is often due to the activation of the benzene ring towards electrophillic substitution by resonance.
-OCH3 directs an incoming electrophile (such as during bromination) to the ortho or para position. This is made possible by resonance (mesomeric) effect as shown in the image attached to this answer.
Image credit: pinterest
Answer:
You find the molar mass of calcium metal, it is listed as 40.1⋅g⋅mol−1 . You should check your copy of the Periodic Table to see if I have got it right. This means that Avogadro's number of calcium atoms, i.e. 6.022×1023 individual calcium atoms have a mass of 40.1⋅g .
Explanation:
Answer:
Many emerging diseases arise when infectious agents in animals are passed to humans (referred to as zoonoses). As the human population expands in number and into new geographical regions, the possibility that humans will come into close contact with animal species that are potential hosts of an infectious agent increases.
Explanation: