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Ivenika [448]
3 years ago
14

Which statement best describes how a catalyst increases the rate of a reaction?

Chemistry
2 answers:
Reika [66]3 years ago
6 0

Answer:

<h2>b</h2>

Explanation:

Ainat [17]3 years ago
3 0
A catalyst "provides an alternate reaction pathway with a lower activation energy". (2) is the correct answer.

Activation energy is the energy needed to conduct a chemical reaction. When a catalyst is put into the system, it makes the system require less activation energy, making the reaction go faster.

Hope this is helpful~ 
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Answer:

6.25 μg/mL

Explanation:

When a dilution is made, the mass of the solute is conserved (Lavoiser's law), so the mass pipetted will be the mass in the assay. The mass is the concentration (C) multiplied by the volume (V). If the pipet solution is called 1, and the assay 2:

m1 = m2

C1*V1 = C2*V2

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V2 = 975 μL + 25 μL = 1000 μL (is the final volume of the assay after the addition of LDH)

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C2 = 6.25 μg/mL

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