Solution :
Compound Ksp
FeS
Ksp of and both compounds dissociate the same way. Hence is more soluble than
is less soluble than
It is not possible to determine CD - is more or less soluble than as though they have a different Ksp values their molecular dissociation is also different and they may have a close solubility values.
can be directly compared with PbS,
100
1-s s 2s
Ksp =
Hence they can be directly compared by Ksp values, smaller the Ksp, smaller the solubility.
For Silver Chloride
1 0 0
1 - s s s
Ksp
Hence, they can be directly compared by Ksp values, smaller the Ksp, smaller the solubility.
I believe it is C. Increase the temperature of coal
Answer:
1(a) N = 3
(b) N = 0
(c) N = 5
(d) N = -2
(2) Molecular formula for benzene is C6H6
Explanation:
1(a) N02 1-
N + (2×-2) = -1
N-4 = -1
N = -1+4 = 3
(b) N2
2(N) = 0
N = 0/2 = 0
(c) NO2Cl
N + ( 2×-2) + (-1) = 0
N - 4 - 1 = 0
N - 5 = 0
N = 0+5 = 5
(d) N2H4
2(N) + (4×1) = 0
2N + 4 = 0
2N = 0 - 4 = -4
N = -4/2 = -2
(2) Molcular mass of benzene = 78g/mole = (6×12g of carbon) + (6×1g of hydrogen) = 72+6 = 78g/mole
Therefore, molecular formula for benzene is C6H6
<span>The elastic potential energy stored in the stretched rubber band changes to kinetic energy.</span>
For metals, reactivity increases down a group and from right to left across a period. Non metals, reactivitt increases up a grouo and from left to right across a period. Francium is the most reactive metal and fluorine is the most reactive non-metal.