In all forms of chemical bonds,the energy stored is chemical energy
<span>It’s
easier to determine the elecron configurations for the p-block elements
in periods 1,2,3 than to determine the electrons configurations for the
rest of the p-block elements in the periodic table beacause
from period 4, specifically from the element 31 (Ga), the atoms start to fill the d orbitals, and the energy levels of the 3d orbitals ara quite similar to the energy levels of 4p orbitals. So, for the elements Cr and Cu the right configurations do not match the configurations predicted using Aufbau method and Hund rules. Those are not the only exceptions but the two first. All is due to the proximity of the energy of the d and p orbitals and the fact that the rearrangement of the electrons result in a lower energy level. </span>
Answer:
eye witnesses, dna, fingerprints, hair, time stamped photos/ videos
Explanation:
:)
Answer:
The answer to your question is pH = 4
Explanation:
Data
Volume 1 = V1 = 1 ml = 0.001 l
Concentration 1 = C1 = 0.1 M
Volume 2 = V2 = 1 l
Concentration 2 = C2 = ?
Process
1.- Find the new concentration of the solution
C₁V₂ = C₂V₂
Solve for C₂
C₂ = C₁V₁ / V₂
Substitution
C₂ = (0.1 x 0.001) / 1
Result
C₂ = 0.0001 M
2.- Find the pH of the solution
Formula
pH = -log[H⁺]
Substitution
pH = - log[0.0001]
Simplification
pH = 4