Answer:
Converting Grams to Moles of an Element and Vice Versa.
We can convert back and forth between grams of an element and moles.
The conversion factor for this is the molar mass of the substance. The molar mass is the ratio giving the number of grams for each one mole of the substance
molar mass is the factor
Mole number of 75 g is 0.4 mol. NO2 is 0.8 mol and is 36.8 g.
A
Explanation:
The coiling up of DNA with the help of histone proteins - to what is called heterochromatic regions- is part of gene regulation. This makes genes inaccessible to RNA polymerase that makes mRNA from the genes. When the genes are exposed by DNA unwinding, these genes are transcribed and the resulting mRNAs are translated by ribosomes into proteins.
The DNA never unwinds completely, but rather does so region by region, because if it does so it would become so long that it wouldn't fit in the nucleus or cell.
The Answer is A
Hope this helped ;)
The precision of the <span>volume of liquid delivered by the slanted buret would be affected by giving you erroneous readings. You will have more volume than what really is the volume. Hope this answers the question. Have a nice day.</span>
