Answer:
(a) -49.9 kJ/mol;
(b) To the right;
(c) 34.6 kJ/mol
Explanation:
(a) For this reaction, since it's at equilibrium and standard states, we know that we can apply the equation:
Substituting the given variables:
(b) Notice that this reaction is spontaneous, since 
. This means reaction spontaneously proceeds to the right side. Besides, K > 1, this means products dominate over reactants, so reaction proceeds to the right.
(c) Given the expression of the formation constant, we can use the same expression to calculate the reaction quotient at non-standard conditions:
![Q_f = \frac{[Ni(NH_3)_6]^{2+}}{[Ni^{2+}][NH_3]^6} = \frac{0.010}{0.0010\cdot 0.0050^6} = 6.4\cdot 10^{14}](https://tex.z-dn.net/?f=Q_f%20%3D%20%5Cfrac%7B%5BNi%28NH_3%29_6%5D%5E%7B2%2B%7D%7D%7B%5BNi%5E%7B2%2B%7D%5D%5BNH_3%5D%5E6%7D%20%3D%20%5Cfrac%7B0.010%7D%7B0.0010%5Ccdot%200.0050%5E6%7D%20%3D%206.4%5Ccdot%2010%5E%7B14%7D)
Now, notice that 
. In this case, we have an excess of the products, this means reaction will shift to the let left to restore the equilibrium.
Calculate:
Answer:
The prefixes tell you how many of each there are.
Explanation:
So for this example, mono would mean there is one sugar, di meaning 2 sugars and so on. Hope this helped!
Here is a table:
mono- 1 hexa-6
di-2 hepta- 7
tri- 3 octo- 8
tetra- 4 nona- 9
penta - 5 deca- 10
The balanced equation is 2H2+O2=2H2O i think
<span>The only statement that states a fact about metals is the first option, letter A. They are shiny and bend without breaking. Choices B-D are wrong because metals are not insulators but are god conductors of heat and electricity. Metals can be flattened but they are not brittle.</span>
