[× mol of heme]
<h3>What is heme?</h3>
The protein haemoglobin, which is required to bind oxygen in the bloodstream, is a precursor to heme. Both the liver and bone marrow can biosynthesize heme.
Heme is a coordination complex that "consists of an iron ion coupled to porphyrin serving as a tetradentate ligand, and to one or two axial ligands," according to biological terminology. The term is ill-defined, and many illustrations leave out the axial ligands.
Heme is one of the most often utilised metalloporphyrins employed by metalloproteins as prosthetic groups, and it defines the family of proteins known as hemoproteins.
The biologically significant hemoproteins heme peroxidase, myoglobin, cytochromes, catalases, and endothelial nitric oxide synthase all contain heme, which is most generally known as a component of haemoglobin, the red colour in blood.
Learn more about heme
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The law of conservation of mass applies to both cases, the following will explain how:
1. When 50 g of sugar undergoes a physical change, say for example dissolving or melting, the amount of sugar in the solution or melted form will also be 50 grams. This shows that the mass before and after the change was the same, in accordance to the law of conservation of mass.
2. When the magnesium strip is burned, this is a chemical reaction. The problem is that we only measure the mass of one of the substances involved in the reaction, the magnesium strip, which makes it seem like the mass has increased. Actually, during burning, the magnesium combines with oxygen in the air. This oxygen was present before the reaction, we just did not measure it. And after the reaction it is present in the form of product. Therefore, mass is still conserved.
D = m/v
m = Dv = 10.5 * 100 = 1050 grams
1050/Ag's amu = 1050/47 = around 22.5
22.5 moles is your answer
Chemical:
Milk goes sour
Bread becomes toast
Physical:
Butter melts
Water evaporates
True, if you would like an example look at Indian arrow heads or early architecture all use rocks.