First one is cell Membrane and the second one is cell Wall
Answer:
It organizes all of the elements and it allows you to easily find the groups of elements such as
Group 1 of the periodic table consists of hydrogen and the alkali metals
Group 2 consists of the alkaline metals (batteries!)
Groups 3–12 contain transition metals
Groups 13–16 each contain at least one metalloid
Group 17 contains halogens
Group 18 consists of noble gases which are stable.
It is easy to read and theres a song to help you memorize them online.
Explanation:
Answer:
Option (B) pH > 2.34 and pH < 9.60.
Explanation:
In a zwitterionic structure, overall negative charge should be 0.
It means, for glycine, the two functional groups e.g. 
and -COOH should bear equal and opposite charges in it's zwitterionic structure.
of -COOH (in glycine) = 2.34
Therefore, at a pH > 2.34, -COOH group of glycine exists predominantly as 
.
of (in glycine) = 9.60
Therefore, at a pH < 9.60, group of glycine exists predominantly as 
.
Hence we can say that at 2.34 < pH < 9.60, glycine exists predominantly in zwitterionic form due to presence of and in equal amount.
Answer:
-0.74
Explanation:
Let's consider the following redox reaction.
AgCl(s) + NO(g) → Ag(s) + Cl⁻(aq) + NO₃⁻(aq)
We can identify the oxidation and reduction half-reactions.
Reduction (cathode): 1 e⁻ + AgCl(s) → Ag(s) + Cl⁻(aq)
Oxidation (anode): 2 H₂O(l) + NO(g) → NO₃⁻(aq) + 4H⁺(aq) + 3 e⁻
The standard cell potential (E°) is equal to the difference between the standard reduction potential of the cathode and the standard reduction potential of the anode.
E° = E°red,cat - Ered,an = 0.22 V - 0.96 V = -0.74 V
