Answer:
temperate, hot, degradation, California
Explanation:
Answer:
2.45×10^54
Explanation:
Mg(s) + Zn2+(aq) = Mg2+(aq) + Zn(s)
From the equation;
n= 2 moles of electrons
E°anode= -2.37 V
E°cathode= -0.76 V
From E°Cell= E°cathode - E°anode
E°Cell= -0.76-(-2.37) = 1.61 V
Recall that E°cell= 0.0592/n log K
1.61= 0.0592/2 log K
log K = 1.61/0.0296
K= Antilog (54.39)
K= 2.45×10^54
Salts dissociate when dissolved in water:
PbSO4 -> Pb2+ + SO4 2-
So there are 2 different particles. 1 mol
of PbSO4 produces 1 mol of Pb2+, and 1 mol of SO4 2- (one of each).
Kps = [Pb2+] [SO4 2-]
We will call “s” the molarity of PbSO4
So the molarity of Pb2+ is also “s” (same
number)
And the molarity of SO4 2- is also “s”
(same number)
Kps = s*s = s2
1.82
× 10-8 = s2
So,
in order to find s, we have to make the square root of 1.82 × 10-8, which is: 0,00013491 M
Answer:
Oiling is done on a regular basis to sewing Machine because in the machine there are lots of machinery parts i.e. wheels and axels, etc. which are in continuous use and they possess so much frictional force between them that wear tear may be observed in those parts.
Pick C Because it's
Explanation:
a chemical reaction in which one element replaces another in a compound. F₂ + 2NaCl → 2NaF + Cl₂, where F replaces Cl in NaCl. A double-replacement reaction is a reaction in which the metals in two ionic compounds exchange partners.
