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nasty-shy [4]
3 years ago
13

Predict the following products balance determine reaction

Chemistry
1 answer:
Nady [450]3 years ago
4 0
1) CuCl2+H2S—>CuS+2HCl
Double replacement

2)ZnCO3—>ZnO+CO2 (already balanced)
Decomposition

3)2Zn+2HCl—>2ZnCl+H2
Single replacement
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x = 20 long tables

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Explanation:

We have the following system of equations:

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From the first equation we have:

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And we replace x in the second equation:

8(25 - y) + 6y = 190

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200 - 2y = 190

200 - 190 = 2y

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Now we insert the value of y in the next equation:

x = 25 - y

x = 25 - 5

x = 20

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