What is the standard cell notation of a galvanic cell made with magnesium (Mg) and gold (Au)?
A. Mg2+(aq) | Mg(s) || Au(s) | Aut(aq)
B. Mg(s) | Mg2+(aq) || Aut(aq) | Au(s)
C. Aut(aq) | Au(s) || Mg(s) | Mg2+ (aq)
D. Au(s) | Aut(aq) || Mg2+ (aq) | Mg(s)

B

Explanation:

Mg(s) | Mg2 + (aq) Au + (aq) | Au(s)

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.

un recipient conține 6,4 moli de gaz. gazul hidrogen reprezintă 25% din totalul kilometrilor din container. în cazul în care presiunea totală este de 1.24 atm ceea ce este