3 years ago

14 someone help ASAP

1 answer:

5 0

D. the activation energy is the displacement of energy needed for the reaction, so the distance underneath the maximum point

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Which of the following collisions will lead to the reaction shown above

frozen [14]

It’s B collides with C

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3 years ago

What is the wavelength of spectral line resulted from the electron transition from n=3 to n=2 in a hydrogen atom.

MakcuM [25]

Answer:

$\lambda=6.56x10^{-7}m$

Explanation:

Hello there!

In this case, it possible to use the Rydberg equation in order to calculate the wavelength for this transition from n=3 to n=2 as shown below:

$\frac{1}{\lambda} =R_H(\frac{1}{n_f^2}-\frac{1}{n_i^2} )$

Thus, we plug in the corresponding energy levels and the Rydberg constant to obtain:

$\frac{1}{\lambda} =10973731.6m^{-1}(\frac{1}{2^2}-\frac{1}{3^2} )\\\\\frac{1}{\lambda} =1524129.4m^{-1}\\\\\lambda=\frac{1}{1524129.4m^{-1}} \\\\\lambda=6.56x10^{-7}m$

Best regards!

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4 years ago

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Br,Ga,Cl?

Explanation:

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4 years ago

How many atoms are in 48.8 g of pure aluminum?

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3 years ago

How many moles are in a sample of Sodium that contains 1.806 x 1024 atoms?

Ad libitum [116K]

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1.806x10²⁴ atoms Na x 1 mole Na / 6.022x10²³ atoms Na

= 2.99 or 3 moles Na

3 0

4 years ago