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storchak [24]
3 years ago
10

Oque é um hibrido de ressonancia?

Chemistry
2 answers:
Yuri [45]3 years ago
8 0

Answer:

Resonance hybrid: A weighted average of all significant resonance contributors depicting the true electronic structure of a molecule.

Explanation:

Translation: Híbrido de ressonância: uma média ponderada de todos os contribuintes de ressonância significativos, representando a verdadeira estrutura eletrônica de uma molécula.

Rainbow [258]3 years ago
4 0

Answer:

el híbrido de resonancia es un promedio ponderado de todos los contribuyentes de resonancia significativos que representan la verdadera estructura electrónica de una molécula.

Explanation:

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Suppose the concentration of the standard stock solution is 50.04 ppm and that you delivered 4.60 mL of this standard stock solu
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Answer:

9.21 ppm

Explanation:

Considering

concentration_{working\ solution}\times Volume_{working\ solution}=concentration_{stock\ solution}\times Volume_{stock\ solution}

Given  that:

concentration_{working\ solution}=?

Volume_{working\ solution}=25.00mL

Volume_{stock\ solution}=4.60mL

concentration_{stock\ solution}=50.04 ppm

So,  

concentration_{working\ solution}\times 25.00mL=50.04 ppm\times 4.60mL

concentration_{working\ solution}=\frac{50.04\times 4.60}{25.00}\ ppm=9.21\ ppm

4 0
2 years ago
When you walk, you push against the floor, and _________.
Taya2010 [7]
When you walk, you push against the floor, and t<span>he floor pushes back against you.

Answer: B. The floor pushes back agaisnt you. 

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2 years ago
24. The air in a small 250 cm birthday balloon is at a pressure of 760 torr. A boy sits on it at
kvv77 [185]

Answer:

1.14atm

Explanation:

Given parameters:

V1 = 250cm³ ;

              1000cm³ = 1dm³;  so this is 0.25dm³

P1  = 760torr

            760torr  = 1atm

       

V2  = 220cm³ ; 0.22dm³

Unknown:

New pressure = ?

Solution:

To solve this problem, we apply Boyle's law and we use the expression below:

       P1 V1 = P2V2

The unknown is P2;

            1 x 0.25  = P2 x 0.22

                 P2  = 1.14atm

7 0
2 years ago
A reaction is started with both reactants and products and proceeds in the reverse direction to reach equilibrium. Which of the
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Answer:

Option A

Explanation:

A) Yes. The reaction reaches equilibrium when the rate of reaction of the reverse reaction is equal to the rate of the forward reaction , then the only cause for the reverse reaction to be favoured is that the initial rate of the reverse was greater than the forward one.

B) No. The rate constant of the reverse reaction can be greater than the forward one  but the rate also depends on concentrations, thus a reverse reaction with greater rate constant can result in the net reaction proceeding in the forward reaction, the reverse reaction or be at equilibrium depending on the concentrations or reactants and products

C) No. A lower activation energy means a higher rate constant , but a higher rate constant does not mean that the net reaction will proceed to the reactants ( see point B)

D) No. The energy changes determine conditions under thermodynamic equilibrium and therefore the net direction of the reaction will depend on the temperature and concentrations of reactants and products with respect to the equilibrium conditions.

6 0
3 years ago
Which ecosystem is the most diverse ecosystem?
Mashcka [7]

Answer:

Rain forest

Explanation:

The rainforest has a very diverse animal kingdom

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2 years ago
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