The answer is option e that is e. Iron and magnesium.
Dark silicates have a specific gravity of 3.2 to 3.6 and are composed primarily of silica tetrahedral and iron and magnesium.
Iron and magnesium is a component of dark silicates that have a specific gravity of 3.2 to 3.6.
So the answer is iron and magnesium.
There are two sites on the antibody molecule that have a potential to bind to a non-self molecule. The Fab of an antibody is the region of the antibody that binds to an antigen. It consist of one constant and one variable domain from each heavy and light chain of the antibody. During immune reaction, an antigen-antibody reaction occurs between the antibodies made by the B cells and the antigens.
Answer:
Three
Explanation:
Three hydrogen bonds are between guanine and cytosine base pairs
Hopefully, that helps!
Answer:
True
Explanation:
Carbon atom combine with other elements and form covalent compounds.
For example:
Carbon covalent compound with hydrogen.
Carbon combine with four hydrogen atoms through four single covalent bond. The compound formed is called methane.
Formula:
CH₄
Carbon with oxygen:
Carbon combine with oxygen and form carbon mono oxide and carbon dioxide.
In carbondioxide carbon form two double covalent bonds with two atoms of oxygen.
In carbon monoxide carbon form triple bond with oxygen.
In the given question,
HgxOy (2.50 g) = xHg (2.405 g) + yO
Here, mass of oxygen = 2.50 - 2.405
= 0.095 g
The moles of O₂ = 0.095 / 16 = 0.00594 moles
Moles of Hg = 2.405 / 200.60 = 0.01198 moles
Thus, the ratio of Hg : O is,
0.00594 : 0.01198 or 1 : 2
As the ratio is 1 : 2, thus, the empirical formula is Hg₂O