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3 years ago

Consider the following reaction mechanism:

Chemistry

2 answers:

snow_lady [41]3 years ago

3 0

Answer:

Step 2 (the slow step).

Explanation:

The rate-determining step is always the slow step of a mechanism.

That is so, because it is the slow step which limits the reaction.

Imaging that for assembling a toy you have process of three steps:

1. order ten pieces, which you can do in 1 minute: meaning that you can order order the pieces for 60/1 = 60 toys in 1 hour.

2. glue the pieces and hold the toy until the glue hardens, which takes 1 hour: meaning finishingh 1 toy in 1 hour.

3. pack the toy, which takes 2 minutes: meaning that you can pack 60/2 = 30 toys in one hour.

The time to glue and hold one toy until the glue hardens determines that you can assemble 1 toy in 1 hour and not 60 toys or 30 toys.

Thus, the step that determines the rate at which the reaction happens is the slowest step: step 2.

seropon [69]3 years ago

3 0

Answer: B

Explanation:

In the rate law, the rate- determining step is the slow step.

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3 years ago

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Which equation represents a neutralization reaction?

Law Incorporation [45]

3. Ca(OH)₂ + H₂SO₄ → CaSO₄ + 2 H₂O represents a neutralization reaction.

Explanation:

Neutralization reaction is a reaction in which an acid reacts with a base to form a slat and water.

First reaction is the decomposition reaction in which the reactant is decomposed to form 2 or more products.

Second one is the combustion reaction in which methane is burnt in presence of oxygen.

Third one is the Neutralization reaction, in which calcium hydroxide (base) reacts with sulfuric acid (acid) to form a (salt) calcium sulfate and water.

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4 years ago

a gap in the rock layer due to erosion from no rocks being deposited.HELP FAST PLEASE!?!?!?!?

Allushta [10]

a gap in the rock layer due to erosion or from no rocks being deposited

geological processes taking place today are the same as those that occurred in the past.

fossil that record the shape and structure of an organism

each layer is older than the layer above and younger than the layer below it.

the preserved remains or traces of a once living organism.

fossils that record the movement or behavior of an organism.

sediments spread in all directions until they thin out or hit a barrier.

sedimentary rocks are deposited horizontally.

age of rock compared to the ages of rock layers.

age of rocks calculated in years since formed.

words:

1.absolute age

2.body fossil

3.fossil

4.principle of lateral continuity

5.principle of original horizontally

6.principle of superposition

7.relative age

8.trace fossil

9. unconformity

10.uniformitarianism

Answer is 9,10,2,6,3,8,4,5,7,1

All my answers were correct on this one

6 0

4 years ago

What mass of water is produced from the complete combustion of 7.10×10−3 g of methane? Express your answer with the appropriate

Ann [662]

Answer:

16 mg of water can be produced by 7.1×10⁻³ g of CH₄

Explanation:

This is the reaction:

CH₄ + 2O₂ → CO₂ + 2H₂O

In a combustion, oxgen is a reactant with another compound, and the products are always water and carbon dioxide

1 mol of methane can produce 2 moles of water. Ratio is 1:2

If we convert the mass to moles → 7.1×10⁻³ g . 1 mol/ 16g = 4.43×10⁻⁴ mol

In this reaction I would produce the double of moles I have from methane, so If I have 4.43×10⁻⁴ moles of methane I would produce 8.87×10⁻⁴ moles of water.

What mass of water, corresponds to 8.87×10⁻⁴ moles?

8.87×10⁻⁴ mol . 18g / 1mol = 0.016 g which is actually the same as 16 mg

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4 years ago

Should carbon dioxide be considered to be a pullutant

Kipish [7]

Answer:

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Explanation:

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3 years ago