Answer:
A third type of circuit involves the dual use of series and parallel connections in a circuit; such circuits are referred to as compound circuits or combination
Explanation:
Answer:
Explanation: Covalent Bond is the bond which is formed by the sharing of electrons form one atom to another in order to complete the octet of valence shell of electrons.
The strength of the covalent bond is measured by the its dissociation energy. Higher the tightly bounded the nucleus of the 2 atoms, more energy would be require to break the bond thus higher the dissociation energy. Thus the triple bond will be requiring more of the energy to break it rather than the single bond .
For the better clarification, the data is been attached in the image below.
Answer:
D. works with bones to help you move
Explanation:
Your muscles and tendons are what help bones move.
Answer:
Both K+ and NO3- concentrations are halved
Explanation:
Since the reaction is
K₂Cr₂O₇ + Pb(NO₃)₂ 2K(NO₃) + <u>PbCr</u>₂<u>O</u>₇
knowing that K+ and NO3- are spectator ions, their concentration do not change due to reaction but it will change due to the mixing of volumes of the reactants since we are mixing volumes of different concentrations.
for K+ initially we have:
c K+ initial = 0.25 M
c K+ final = n/ V = C i * Vin / Vfinal = 0.25 M * 100 ml / 200 ml = 0.125 M
the 200 ml comes from mixing the 100 ml of Pb(NO₃)₂ and 100 ml of K₂Cr₂O₇ ( assuming that the volume of the precipitate is insignificant relative to the solution , it does not occlude a significant portion of the saturated solution and assuming that any volume contraction/expansion due to non ideal behaviour of the solution is negligible)
the same happens with NO3- ,therefore its concentration is also halved