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bogdanovich [222]
3 years ago
13

The amount of energy released when 50.0 kg is converted into energy is x 10A. A:

Chemistry
1 answer:
astra-53 [7]3 years ago
8 0

Answer:

The amount of energy released when 50.0 kg is converted into energy is

4.50 x 10A.

A: 18

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Ice is less dese than water
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Write the balanced nuclear equation for the following. (Use the lowest possible coefficients. Omit states-of-matter in your answ
olga55 [171]

Answer:

_{93}^{232}\text{Np} + _{-1}^{0}\text{e} \longrightarrow _{92}^{232}\text{U}

Explanation:

The unbalanced nuclear equation is

_{93}^{232}\text{Np} + _{1}^{0}\text{e} \longrightarrow ?

It is convenient to replace the question by an atomic symbol, _{x}^{y}\text{Z}, where <em>x </em>= the atomic number, <em>y</em> = the mass number, and Z = the symbol of the element.

_{93}^{232}\text{Np} + _{1}^{0}\text{e} \longrightarrow _{x}^{y}\text{Z}

Then your equation becomes

_{93}^{232}\text{Np} + _{1}^{0}\text{e} \longrightarrow _{x}^{y}\text{Z}

The main point to remember in balancing nuclear equations is that the <em>sums of the superscripts and of the subscripts</em> must be the same on each side of the equation.  

Then

93 – 1 = <em>x</em>, so <em>x</em> = 92

232 + 0 = <em>y</em>, so <em>y</em> = 232

Element 92 is uranium, so the nuclear equation becomes

_{93}^{232}\text{Np} + _{-1}^{0}\text{e} \longrightarrow _{92}^{232}\text{U}

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3 years ago
The law of conservation of mass states that in a chemical reaction, mass is neither created nor destroyed. that means, the total
g100num [7]
Well all reactions need energy to start it. The light is the energy that the reaction requires to start it. Sunlight also has no mass in the first place so laws of conservation of mass don't apply to it.

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What coefficients would balance equation: __MgS+__Na2O=_Na2S+__MgO
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Hey there !

<span>Balanced equation:

1 MgS +1 Na2O = 1 Na2S + 1 MgO
</span>
MgS = 1
Na2O = 1
Na2S = 1
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Answer D
6 0
3 years ago
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