Answer: Open System
Explanation: It's an open system because the "Cup" is literally exposed to the surroundings. It will lose heat or gain heat or any other type of energy in its surroundings.
Answer:
Yes, it can be extracted through evaporation. It retains its original properties.
Explanation:
i took the test.
Assuming that the concentration is given as 0.010M (there is a big difference between m and M):
Sulfuric Acid (H2SO4) is a strong acid, and thus will completely dissociate into ions in solution. This will result in
For each mole of H2SO4, there will be 2 moles of H+. So, [H+] = 0.0200M
Na₂S₂O₃
(+1 × 2) + (2 × x) + (-2 × 3) = 0
2+2x-6 = 0
2x-4 = 0
2x = 4
x = 4/2
x = +2....