“Carrot seeds are injected with a substance derived from parsnips that makes them more resistant to rot” is considered as genetically modified food source.
Option: C
<u>Explanation</u>:
"Genetically modified foods" (GM-Foods) also called "bioengineered food" which is considered different from traditional cross breeding. These foods are developed when an organism carry changes which are injected into their DNA by using genetic engineering method. USA is more developing and fast to launch GM-Foods for example researchers at Texas A&M AgriLife's vegetable and Fruit improvement center observed that calcium absorption is more when consumption is done through carrot. They observed 41% more calcium absorption than regular carrot intake.
The acid dissociation constant or Ka is a value used to measure the strength of a specific acid in solution. For a general dissociation of an acid solution,
HA = H+ + A-
we express Ka as follows:
Ka = [H+] [A-] / [HA]
Where the terms represents the concentrations of the acid and the ions. Assuming that the weak acid in the problem is HA, we first calculate for the concentration of H+ from the pH.
pH = - log [H+]
3.25 = - log [H+]
[H+] = 0.0005623 M
By the ICE table, we can calculate the equilibrium concentrations,
HA = H+ + A-
I 0.175 0 0
C -x +x +x
--------------------------------------------------
E .174438 0.0005623 0.0005623
Ka = (0.0005623) (0.0005623) / .174438
Ka = 1.81x10^-6
They have the same number of electrons
Answer:
Valence electrons or outer electrons are most important as they participate in bonding. The octet rule states that atoms gain, lose, or share valence electrons to have filled energy levels.. this gives atoms a stable configuration like that of the nearest noble gas.
Answer:
Atomic radius of Strontium is 27.38pm
Explanation:
In a face-centered cubic structure, the edge, a, could be obtained using pythagoras theorem knowing the hypotenuse of the unit cell, b, is equal to 4r:
a² + a² = b² = (4r)²
2a² = 16r²
a = √8 r
As edge length of Strontium is 77.43pm:
77.43pm / √8 = r
27.38pm = r
<h3>Atomic radius of Strontium is 27.38pm</h3>
