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Maksim231197 [3]
3 years ago
5

In what significant way does the modern model of the atom differ from bohr's model

Chemistry
1 answer:
Readme [11.4K]3 years ago
4 0
Bohr model is valid only for hydrogen and hydrogen-like species, but quantum mechanical model can explain all elements....
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See the picture to answer the question
amid [387]
Above is a potential energy curve of a reaction. It depicts conversion of reactant to product via transition state.

When a catalyst is added to the reaction system, energy barrier of reaction decreases.

It must be noted that energy barrier reaction is defined as energy difference between  reactant and transition state.

In present case, energy of reactant is 200 kj, while that of transition state (in absence of catalyst) is 650 kj

Thus, energy barrier of reaction is 650 - 200 = 450 kj

<span>Hence, system must absorb 450 kj of energy for the reaction to start, if no catalyst was used</span>

4 0
3 years ago
What is most likely to happen when two fluorine
maria [59]

Answer:electrons will be equally attracted to both

Explanation:

e2020

6 0
3 years ago
Read 2 more answers
One method used commercially to peel potatoes is to soak them in a solution of NaOH for a short time and then remove them from t
sergij07 [2.7K]

Answer:

b. 2.28 M

Explanation:

The reaction of neutralization of NaOH with H2SO4 is:

2NaOH + H2SO4 → Na2SO4 + 2H2O

<em>Where 2 moles of NaOH react per mole of H2SO4</em>

<em />

To solve the concentration of NaOH we need to find the moles of H2SO4. Using the chemical equation we can find the moles of NaOH that react and with the volume the molar concentration as follows:

<em>Moles H2SO4:</em>

45.7mL = 0.0457L * (0.500mol/L) = 0.02285 moles H2SO4

<em>Moles NaOH:</em>

0.02285 moles H2SO4 * (2moles NaOH / 1 mol H2SO4) = 0.0457moles NaOH

<em>Molarity NaOH:</em>

0.0457moles NaOH / 0.020L =

2.28M

Right option:

<h3>b. 2.28 M</h3>
7 0
2 years ago
How do I find density
skad [1K]
Divide mass by the volume to find density.
7 0
3 years ago
Unlike the cell wall, the cell membrane is…
irakobra [83]
B: produces energy for the cell
5 0
3 years ago
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