Answer:
1) the oxidation state of the metal is +2
2) there are four d electrons
3) metal valence electrons =4 ligand valence electrons= 18
4) sp^3d^2
5) octahedral geometry
Explanation:
[Cr(H2O)6]2+ is an octahedral complex. Octahedral complexes are known to have the metal ion in sp^3d^2 hybridization state. Since there are six ligands each bonding to the central metal ion, there are eighteen ligand valence electrons and four valence electrons from the metal present in the high spin complex.
The crystal field of high spin and low spin octahedral for a d4 ion is shown in the image attached.
Physical is something you can see with your eyes Chemical is something you can not
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(6.0×10^4) = 60,000
(3.1×10^-1) = 0.31
60,000 × 0.31 = 18,600
Answer:
In diseases that still do not have vaccines, humans would have to be much more careful not to have an injury, since vaccines are a way of having antibodies against microorganisms so that we can survive or better defend ourselves against them.
Vaccines are active acquired immunity, this means that a person who is vaccinated acquires new defenses that are manufactured by their own body, that are not vaccinated or that the vaccine does not exist are diseases that could potentiate with the life of the human being or trigger symptoms graves
Explanation:
People who are not vaccinated or suffer from pathologies that do not have vaccines do not have antibodies to fight the microorganism in the first infection, therefore the pathology develops in a much more serious, harmful and even lethal way.
Antibodies are proteins that our body manufactures by inoculating DNA structures, proteins, inactive bacteria, etc. in the form of a vaccine, these proteins are the method of recognition of said microorganism.
Thus generating that once the microorganism enters the body after the vaccine has been placed, it is recognized and eliminated.All this process written simply in the previous text happens in vaccinated people, in those who do not have the vaccine or are not vaccinated. suffer the opposite consequences for lack or deficit of acquired immunity.
Vaccination is a form of active acquired immunization and each country has a different vaccination plan according to the pathologies that prevail in the area to protect the population that lives in them.
