Answer:
i) The pCa before initiating the titration is 2.6
ii) The pCa is 6.67
Explanation:
please look at the solution in the attached Word file
In the periodic table, there is a size trend.
The trend occurs horizontally and vertically on the table.
- From right to left, the atomic radius gets larger.
- From top to bottom, the atomic radius gets larger.
The reasoning for this is the additional energy levels and electrons being added as you go from right to left or top to bottom.
We can see that Magnesium is higher and more right in the periodic table than sodium and calcium.
Thus, Magnesium has a smaller atomic radius than both sodium and calcium
Answer: Iron loses three electrons and oxygen gain two electrons.
Explanation:
- this reaction represents the formation of rust of Fe.
4Fe + 3O2 → 2Fe2O3
- The Fe is oxidized by oxygen and converts from Fe (oxidation number = 0) to Fe3+ (oxidation number = 3+) that Fe loses 3 electrons.
- The oxygen is reduced and the oxidation state changed from 0 to 2- that oxygen loses 2 electrons.
- The other 2 choices are clear to be wrong.
Answer:
n a group of rats, some individuals have a normal-sized body and others have a dwarf body. In this group, the gene for the body size trait has two alleles. The allele for a normal-sized body (B) is dominant over the allele for a dwarf body (b).
Squeaky, a rat from this group, has a dwarf body.
Based on Squeaky's phenotype for the body size trait, which of the following could be Squeaky's genotype for the body size gene?
Explanation: can someone pls help?