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rjkz [21]
3 years ago
13

12. Consider the reaction: 2H2+O2 2H2O Decreasing the temperature would the rate of reaction increase a. b. decrease not change

C.
Chemistry
1 answer:
Artemon [7]3 years ago
4 0

Answer: Option (b) is the correct answer.

Explanation:

As the given reaction is as follows.

          2H_{2} + O_{2} \rightarrow 2H_{2}O

So, when we decrease the temperature for this reaction then there will be decrease in kinetic energy of reactant molecules. As a result, less number of collisions will take place.

Hence, there will be decrease in rate of chemical reaction.

Thus, we can conclude that in the given reaction decreasing the temperature would also decrease the rate of reaction.

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To what volume should you dilute 55 mL of 12 M stock HNO3 solution to obtain a 0.145 HNO3 solution?
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Answer:

4552 mL

Explanation:

From the question given above, the following data were obtained:

Volume of stock solution (V₁) = 55 mL

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Volume of diluted solution (V₂) =?

The volume of the diluted solution can be obtained by using the dilution formula as illustrated below:

M₁V₁ = M₂V₂

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7 0
3 years ago
Which of the following would NOT diffuse through the plasma membrane by means of simple diffusion?1 oxygen2 glucose3 a steroid h
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Option 2= Glucose

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Cell membrane is made up of two phospholipid layers and each contain phosphate head and fatty acid or lipid tails. the head is present between the outer and inner boundaries and tail is present in between. The small non- polar molecules can pass the membrane through simple diffusion. This lipid tail restrict the passage of polar molecules including water soluble substances like glucose. However, transmembranes are present that allow the molecules to inter that are blocked by the tails.

Facilitated diffusion:

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