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natulia [17]
3 years ago
6

Need help !!!!! In this question im stuck

Chemistry
1 answer:
GenaCL600 [577]3 years ago
5 0

Decrease, increase and increase I think this is correct

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A large rift valley can be found along the east coast of Africa. It has been slowly widening over time, and it is now wide enoug
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wind and water erosion

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Nitrogen and hydrogen combine at a high temperature, in the presence of a catalyst, to produce ammonia. N 2 ( g ) + 3 H 2 ( g )
Kisachek [45]

Answer:

After complete reaction, 0.280 moles of ammonia are produced

Explanation:

Step 1: Data given

Number of moles N2 = 0.140 moles

Number of moles H2 = 0.434 moles

Step 2: The balanced equation

N2(g) + 3H2 (g) ⟶ 2NH3 (g)

Step 3: Calculate the limiting reactant

For 1 mol N2 we need 3 moles H2 to produce 2 moles NH3

N2 is the limiting reactant. It will completely be consumed (0.140 moles).

H2 is in excess. There will react 3*0.140 = 0.420 moles

There will remain 0.434 - 0.420 = 0.014 moles

Step 4: Calculate moles NH3

For 0.140 moles N2 we'll have 2*0.140 = 0.280 moles NH3

After complete reaction, 0.280 moles of ammonia are produced

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3 years ago
What can be said about an endothermic reaction with a negative entropy change?
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The statement is false because endothermic reactions have a positive enthalpy change, because heat is being added to the system because it requires more energy to react
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Picture a neutral P atom. This neutral atom will have
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It will have 5 valence electrons as its in group 5.

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PLEASE HELP ME !!!!
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