Maryse Moi, je prends (1) [1] pizza. Toi aussi? Laëti…
Maryse Moi, je prends (1) [1] pizza. Toi aussi? Laëtitia Non, je ne prends pas (2) [2] pizza. Je prends (3) [3] sandwich au jambon. Maryse J’ai très soif. Je prends aussi (4) [4] eau minérale. Et toi? Laëtitia Je prends (5) [5] thé.
Read DetailsAt 298 K , ∆H = 58.1 kJ and ∆S = 165 J/K for the reaction sh…
At 298 K , ∆H = 58.1 kJ and ∆S = 165 J/K for the reaction shown below. Cu2O(s) + C(s) ⟶ 2Cu(s) + CO(g) (a) Use the data to decide if this reaction is spontaneous at 298 K. [a] (b) What is the temperature above which the reaction is spontaneous? [b]
Read DetailsConsider the following redox reaction in acidic solution: Pb…
Consider the following redox reaction in acidic solution: Pb4+(aq) + Br- (aq) → Pb2+ (aq) + BrO3-(aq) When the equation is balanced with smallest whole number coefficients, the coefficient for — (a) Pb4+ = [a] (b) Br- = [b] (c) Pb2+ = [c] (d) BrO3- = [d]
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