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Stolb23 [73]
1 year ago
13

The reaction energy of a reaction is the amount of energy released by the reaction. It is found by determining the difference in

mass between the reactants and products and then using E
Chemistry
1 answer:
MArishka [77]1 year ago
8 0

correct answer is 7.8026035971 x 10^(-13) jo

Use Energy Conservation. By ``alpha decay converts'', we mean that the parent particle turns into an alpha particle and daughter particles. Adding the mass of the alpha and daughter radon, we get

m = 4.00260 u + 222.01757 u = 226.02017 u .

The parent had a mass of 226.02540 u, so clearly some mass has gone somewhere. The amount of the missing mass is

Delta m = 226.02540 u - 226.02017 u = 0.00523 u ,

which is equivalent to an energy change of

Delta E = (0.00523 u)×(931.5 Me V/1u)

Delta E = 4.87 Me V

Converting  4.87 Me V to Joules

1 joule [J] = 6241506363094 mega-electrón voltio [Me V]

4 mega-electrón voltio = 6.40870932 x 10^(-13) joule

4.87 mega-electrón voltio = 7.8026035971 x 10^(-13) joule

What is energy conservation?

Energy conservation is the decision and practice of using less energy. Turning off the light when you leave the room, unplugging appliances when they're not in use and walking instead of driving are all examples of energy conservation.

Why is energy conservation important?

When you limit your energy usage, you lower your impact on the environment. The longer we go without making significant changes, the greater the threat of global warming and climate change become to our daily lives. When we burn fossil fuels, they create an incredible amount of greenhouse gas emissions.

Learn more about energy conservation:

brainly.com/question/12306849

#SPJ4

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Which of the following defines the wavelength of a wave?
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Amateur radio operators in the United States can transmit on several bands. One of those bands consists of radio waves with a wa
zloy xaker [14]

Answer:

1.5×10⁷ Hz

Explanation:

From the question given above, the following data were obtained:

Wavelength of radio wave (λ) = 20 m

Frequency (f) =?

Frequency and wavelength of a wave are related by the following equation:

v = λf

Where:

'v' is the velocity of electromagnetic wave.

'λ' is the wavelength

'f' is the frequency.

With the above formula, we can obtain the frequency of the radio wave as illustrated below:

Wavelength of radio wave (λ) = 20 m

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