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andreev551 [17]
3 years ago
11

Balance the following reaction. A coefficient of \"1\" is understood. Choose option \"blank\" for the correct answer if the coef

ficient is \"1.\". . Al + ZnCl2 → Zn + AlCl3. . . 2.Balance the following reaction. A coefficient of \"1\" is understood. Choose option \"blank\" for the correct answer if the coefficient is \"1.\". . NH3 + O2 → N2 + H2O. .
Chemistry
1 answer:
g100num [7]3 years ago
8 0
Conservation of mass is the underlying principle of balancing equation. When we balance equation, this means that we acknowledge that before and after the chemical reaction, the elements are conserved. To balance the chemical equation, we add coefficients before each reactant and product. Here are the following answers: 

Reaction 1: 
<span>2Al
3ZnCl2
3Zn
2AlCl3
Reaction 2: 
</span><span>4NH3
3O2
2N2
6H2O</span>
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Answer:

<h2>The answer is 70 kPa</h2>

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P_1V_1 = P_2V_2

where

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Since we are finding the final pressure

P_2 =  \frac{P_1V_1}{V_2}  \\

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P1 = 105 kPa = 105 , 000 Pa

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We have the final answer as

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Hope this helps you

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