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3 years ago

Какая система называется моделью химия

Chemistry

2 answers:

OlgaM077 [116]3 years ago

8 0

I don’t understand, what does that say in english?

lutik1710 [3]3 years ago

3 0

Answer:

Я уверен, что это модель Бора

Я могу ошибаться

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How to set up the rate expressions for the following mechanism?

Anestetic [448]

Answer:

Explanation:

From the given information:

A → B k₁

B → A k₂

B + C → D k₃

The rate law = $\dfrac{d[D]}{dt}=k_3[B][C] --- (1)$

$\dfrac{d[B]}{dt}=k[A] -k_2[B] -k_3[B][C]$

Using steady-state approximation;

$\dfrac{d[B]}{dt}=0$

$k_1[A]-k_2[B]-k_3[B][C] = 0$

$[B] = \dfrac{k_1[A]}{k_2+k_3[C]}$

From equation (1), we have:

$\mathbf{\dfrac{d[D]}{dt}= \dfrac{k_3k_1[A][C]}{k_2+k_3[C]}}$

when the pressure is high;

k₂ << k₃[C]

$\dfrac{d[D]}{dt} = \dfrac{k_3k_1[A][C]}{k_3[C]}= k_1A \ \ \text{first order}$

k₂ >> k₃[C]

$\dfrac{d[D]}{dt} = \dfrac{k_3k_1[A][C]}{k_2}= \dfrac{k_1k_3}{k_2}[A][C] \ \ \text{second order}$

3 0

3 years ago

An example of an ____ reaction is when metals react with oxygen to form metal _____.

Reptile [31]

An example of an exothermic reaction is when metals react with oxygen to form metal Oxides

Hope this helped you- have a good day bro cya)

4 0

3 years ago

Write an importance of endothermic reactions

KengaRu [80]

Answer:

the uses of exothermic reactions are:

1) lighting of stove

2) self heating cans

3) hand warmers

4) in some case exothermic process can be used to cook food such as rice (by adding calcium oxide to water heat is evolved and it helps to cook food )

Explanation:

hope this helps you pls mark me as brainilst

8 0

3 years ago

What is the hybridization of bromine in BrO2-?

kap26 [50]

The hybridization of bromine must be sp^3.

5 0

3 years ago

Read 2 more answers

1. Name the compound present in a sample of dry air.

aev [14]

Answer:

not air

Explanation:

I think so

hahaha

7 0

2 years ago