In letters a and b, the "?" is a "-".
Answer:
a. - 1.051 V
Explanation:
In a redox reaction, one substance will oxide (lose electrons) and the other will reduce (gain electrons). The potential of reduction can be calculated by placing a redox reaction with H₂, which has a potential equal to 0.
For a spontaneous reaction, the electrons go from the anode (oxidation) to the cathode (reduction), and then the potential of the cell is the cathode potential lesse the anode potential:
E°cell = E°c - E°a
1.587 = 0.536 - E°a
E°a = 0.536 - 1.587
E°a = -1.051 V
Answer:
Explanation:
In a simple cubic lattice lattice, the atoms are present at the eight corners of the cibe.
Since it is mentioned that the fluorine is present at the corners and also 1 corners are shared by 8 unit cells. So, share of atom in one unit cell is:- 
Also, the metal, M occupy half of the body centre. A cube has only one body centre. So, share of M in each unit cell:- 
Thus, the formula is:-
Or simplifying
Answer:
Five molecules of oxygen.
Explanation:
Hello,
In this case, considering the given chemical reaction, we must write a five before the oxygen in order to equal the number of oxygen atoms at both the right and left side (ten) so phosphorous remain the same (4):
It means that five molecules of oxygen (O₂) are needed to form one molecule of tetraphosphorous decaoxide (P₄O₁₀).
Best regards.
mg reacts with the acid and produce visible bubbles of hydrogen gas. they will produce audible pops as the hydrogen ignites. ... Hydrochloric acid is a corrosive liquid. Hydrogen gas is explosive.
Answer:
Based on the information, the compound is a phospholipid.
Explanation:
Phospholipids are made up of a fatty acid tail which is hydrophobic in nature and a head which comprises of phosphates that is hydrophilic in nature. Hence, phospholipids are amphiphilic compounds so they will be partially soluble in water and will allow water-soluble substances to mix with fats.
Hence, the composition of the substance described in the question confirms that is a phospholipid. As it's structure contains hydrocarbon and phosphorus and might also contain nitrogen.
