Answer:
Solutions made by dissolving something in water - typically, the more concentrated the solution, the lower the freezing point because the solute molecules disrupt the ability of water molecules to interact with one another and to form organized structures as the temperature is lowered.
(a)
Write balanced half-reactions for the process:
Oxidation: Se^2- (aq) → Se
(s) + 2e-
Reduction: 2So3^2- (aq) + 3H2O (l) + 4e- →
S2O3^2- + 6OH- (aq)
(b)
If E sulfite is 0.57 V, calculate E selenium:
E anode = E cathode – E cell
= -0.57 – 0.35
=
-.092
Answer:
The second part of the Dalton's atoms
theory says all atoms of a given element are identical in mass and properties.
The answer is a. The arteries are red and transfer blood to the heart. Veins are blue and transfer blood away from the heart and to all of the different parts of the body. The capillaries are in-between the veins and arteries and provide blood to cells.
