Answer:
They form crystals, they have really high boiling points, They have higher enthalpies of fusion and vaporize than an molecular compound, the are brittle
Explanation:
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Answer:
Explanation:
Hello,
In this case, given that the same temperature and pressure is given for all the gases, we can notice that 16.0 mL are related with two moles of carbon monoxide by means of the Avogadro's law which allows us to understand the volume-moles relationship as a directly proportional relationship. In such a way, since in the chemical reaction:
We notice two moles of carbon monoxide yield two moles of carbon dioxide, therefore we have the relationship:
Thus, solving for the yielded volume of carbon dioxide we obtain:
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Answer: (a) K *[A][B]^2
(b) The answer is B
Explanation:
A)
Step1:A+B<--> C (fast)
Step2: B+C→D(slow)
Rate depends on slowest step.
so,
rate = k' [B][C] ...eqn 1
But C is intermediate.so use step 1
Since 1st step is an equilibrium,
Kc = [C] /[A][B]
so,
[C] = Kc [A][B] ...eqn 2
put eqn 2 in eqn 1
rate = k' *[B] * Kc [A][B]
= k'Kc*[A][B]^2
= K *[A][B]^2 {writing k'Kc = K}
Answer: K *[A][B]^2
B)
Answer is B
Since rate depends on slowest step.
if slowest step is:
X2Y2+Z2→X2Y2Z+Z
then only,
rate= k[X2Y2][Z2]
Answer: B
Answer:
the answer is B) Planting native grasses in bare soil
Explanation:
Answer:
8
Explanation:
From the question given above, the following data were obtained:
Empirical formula = C₅H₇
Molecular weight = 537 amu.
Number of empirical unit (n) =?
We can obtain the number of empirical units in the actual molecular formula by doing the following:
[C₅H₇]n = 537
[(12×5) + (1×7)]n = 537
[60 + 7]n = 537
67n = 537
Divide both side by 67
n = 537/67
n = 8
Thus, there are 8 empirical units in the molecular formula