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jolli1 [7]
3 years ago
10

Lymph nodes are...

Chemistry
1 answer:
MrMuchimi3 years ago
7 0

Answer:

a

Explanation:

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Calculate the number of kilojoules to warm 125 g of iron from 23.5 °C to 78.0 °C.
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How many liters are in 5.98 moles of nitrogen gas at STP?
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Answer:

The correct answer is c) 134L

Explanation:

We use the formula PV =nRT. The normal conditions of temperature and pressure are 273K and 1 atm, we use the gas constant = 0, 082 l atm / K mol.

1 atm x   V = 5, 98 mol x 0, 082 l atm / K mol x 273 K

V = 5, 98 mol x 0, 082 l atm / K mol x 273 K / 1 atm

V = 133, 86828 l

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3 years ago
PLEASE HELP!!!
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3 years ago
In the following reaction, which substance is the precipitate? (NH4)2SO4(aq) + Ba(NO3)2(aq) BaSO4(s) + 2NH4NO3(aq
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Therefore, the precipitate will be BaSO4 (s).

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3 years ago
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