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ahrayia [7]
3 years ago
15

What number should be placed

Chemistry
1 answer:
vfiekz [6]3 years ago
7 0

Answer:

13g

Explanation:

34+10+26=70

70-57=13

13g would complete the equation

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Giovanni created this chart to study for an exam.
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Answer:

b- swap the uses for iron oxide and calcium carbonate.

Explanation:

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3 years ago
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Which element has exactly five electrons in the highest principal energy level (the outer shell)?
kap26 [50]
Boron (B) has 3 electrons in the outer shell.
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4 years ago
2Na(s) + Cl2(g) - 2NaCl(s) + 822 kj
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3 years ago
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An ideal gas described by Ti=291K, Pi=1.50bar, and Vi=13.3L is heated at constant volume until P=15.0bar. It then undergoes a re
Salsk061 [2.6K]

Answer:

W=-4601.4J

Explanation:

Hello,

In this case, the steps are:

291K,1.50bar, 13.3L \rightarrow 15.0bar 13.3L,T_2\rightarrow T_2, V_2, 1.50bar\rightarrow 291K,1.50bar, 13.3L

In such a way, the work per mole (w) for that isothermal process turns out:

w=RTln(\frac{P_1}{P_2} )=8.314\frac{J}{mol*K}*291K*\frac{1.50bar}{15.0bar} \\\\w=-5570.8\frac{J}{mol}

In addition, if the moles are required, since it is an ideal gas:

n=\frac{PV}{RT}=\frac{1.50bar*13.3L}{0.083\frac{bar*L}{mol*K}*291K} =0.826mol

So the work is:

W=-5570.8\frac{J}{mol} *0.826mol=-4601.4J

Best regards.

8 0
3 years ago
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Answer:

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3 years ago
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