Answer:
A. is not
B. incorrect
C. identify substances that have the measured molecular mass
Explanation:
Since in the question it is mentioned that the Christy who is a forensic scientist and she gave a white powder and identify whether it is a sugar or not when she tested she seen that the molecular mass is different as compared with the sugar
So here it can be concluded that the white powder does not show a sugar that means it is not a sugar so automatically the hypothesis of Christy is wrong. And, the next step is to track the substance that shows the molecular mass i.e. measured
D) 59 (protons+neutrons=mass)
Answer:
Option C= A hydrogen bond formed between a polar side chain and a hydrophobic side chain.
Explanation:
All three given options a, b and d have common mechanism to accommodate the polar amino acid.
A= A hydrogen bond forms between two polar side chains.
B= A hydrogen bond from between a polar side chain and protein back bone.
D = hydrogen bond form between polar side chains and a buried water molecules.
All these are use to accommodate the polar amino acid.
While option C is not used. which is:
A hydrogen bond formed between a polar side chain and a hydrophobic side chain.
The scentfiic name of o3 is trioxygen or Ozone
Answer:
100 g of the compound contains 72.36 g of iron and 27.64 g of oxygen.
Ratio of atoms of Fe and O, Fe : O = 72.36/56 : 27.64/16 = 1.292 : 1.727 = 1 : 1.33 = 3 : 4
Therefore, the empirical formula of the compound is Fe3O4.
Explanation:
