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Sergeu [11.5K]
3 years ago
9

Consider the following three-step representation of a reaction mechanism.

Chemistry
2 answers:
suter [353]3 years ago
6 0

Answer:

The answer is C. AB is an intermediate; therefore the rate law is determined from the reactants in the previous step.

I just took the test and C. was correct. Please mark me as brainliest!

AlladinOne [14]3 years ago
6 0

Answer:  C: AB is an intermediate; therefore the rate law is determined from the reactants in the previous step.

Explanation:  :  Rate law is usually determined from the slowest step of the reaction mechanism.

Thus as we can see that the reaction which is slow has AB as its intermediate, rate law can be determined from the same.

Moreover , we can see that the overall rate law is very different from the rat law determined from the slowest step.

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What was the purpose of varying the concentrations of sodium alginate and CaCl2?
jeka57 [31]

To determine how stable the beads are as well ensue the securing of maximum enzymes as well as the retention of their activity.

<h3>What is concentration?</h3>

The concentration of a substance simply means the amount of the substance in solution. Thus we are looking at the amounts of sodium alginate and CaCl2 in the system.

The concentrations of the sodium alginate and CaCl2 is varied in order to determine how stable the beads are as well ensue the securing of maximum enzymes as well as the retention of their activity.

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3 0
2 years ago
Problema 5
malfutka [58]

Answer:

dwwq is a lot more than a lot more than a year ago and I am a very young ers and I

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Explanation:

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4 0
3 years ago
Explain why doesn’t the total pressure increase when more gas is added to the chamber?
german

Pressure is inversely proportional to volume. Therefore, the effect of pressure change is opposite to the effect of volume change. So when more gas is added to the chamber the total pressure of the chamber doesn't increase.

<h3>What are the different relations between pressure and volume?</h3>
  • As the volume changes, the concentrations and partial pressures of both reactants and products change.
  • As the volume decreases, the reaction shifts to the reaction side with fewer gas particles.
  • As the volume increases, the reaction shifts to the side of the reaction containing more gas particles.
  • As the pressure increases, the equilibrium shifts towards reactions with fewer moles of gas.
  • As the pressure decreases, the equilibrium shifts to the side of the reaction with higher moles of gas.
  • Moreover, the pressure change in the system due to the addition of the inert gas is not limited to this.

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4 0
2 years ago
the isotope 146c has a half life of 5730 years. what fraction of 146c in a sample with mass ,m, after 28650 years
defon

Answer:

3.1% is the fraction of the sample after 28650 years

Explanation:

The isotope decay follows the equation:

Ln[A] = -kt + Ln[A]₀

<em>Where [A] could be taken as fraction of isotope after time t, k is decay constant and [A]₀ is initial fraction of the isotope = 1</em>

<em />

k could be obtained from Half-Life as follows:

K = Ln 2 / Half-life

K = ln 2 / 5730 years

K = 1.2097x10⁻⁴ years⁻¹

Replacing in isotope decay equation:

Ln[A] = -1.2097x10⁻⁴ years⁻¹*28650 years + Ln[1]

Ln[A] = -3.4657

[A] = 0.0313 =

<h3>3.1% is the fraction of the sample after 28650 years</h3>

<em />

3 0
3 years ago
A 2.50 cm cube of copper metal has a mass
rosijanka [135]

Explanation:

140.125g

3 0
3 years ago
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