The number of mole of nitrogen that occupies 1.2 L under the same condition is 0.6 mole
<h3>Data obtained from the question </h3>
- Initial mole (n₁) = 0.2 mole
- Initial volume (V₁) = 0.4 L
- Final volume (V₂) = 1.2 L
- Final mole (n₂) =?
<h3>How to determine the final mole </h3>
The final mole can be obtained by using the ideal gas equation as illustrated below:
PV = nRT
Divide both side n
PV / n = RT
Divide both side by P
V / n = RT / P
RT / P = constant
V / n = constant
Thus,
V₁ / n₁ = V₂ / n₂
0.4 / 0.2 = 1.2 / n₂
2 = 1.2 / n₂
Cross multiply
2 × n₂ = 1.2
Divide both side by 2
n₂ = 1.2 / 2
n₂ = 0.6 mole
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The question is incomplete, the complete question is shown in the image attached to this answer.
Answer:
a) Br^-
b) FeCl3
c) slower
d) see the first attached image
Explanation:
Aromatic compounds undergo electrophilic substitution sections in the presence of the appropriate electrophile.
In the reaction above, the Br^- nucleophile attacks the Lewis acid FeCl3. Recall that the nitro group is meta directing hence the incoming Br^+ electrophile is directed towards the meta position as shown in the image attached.
Note that the nitro group deactivates the ring towards electrophilic substitution hence the reaction is slower with nitrobenzene than with unsubstituted benzene.
The number of protons among the 2 isotopes remain the same, what varies is the number of neutrons between the 2 isotopes. The isotope with the larger mass number possess a greater number of neutrons compared to the other one.
Answer:
<h3><em>D</em></h3>
Explanation:
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<h3><em>hope </em><em>it </em><em>helps </em><em>please </em><em>follow </em><em>because </em><em>I </em><em>don't </em><em>have </em><em>any </em><em>followers </em><em>I </em><em>have </em><em>0</em><em> </em><em>followers</em></h3>
Answer:
Property Family Group
react vigorously with metals halogens 17
can be cut with a knife alkaly metals 1
don't react with any other elements noble gases 18
Explanation:
<u>Noble gases</u> are placed in the group 18 of the periodic table. This family is formed by He, Ne, Ar, Kf, Xe, Rn, and Og. Since they have their valance shell complete, they tend to not react with other elements. Nevertheless, nowadays it is known that they can form some compounds.
<u>Alkaly metals</u> are placed in the the group 1 of the periodic table. This family is formed by Li, Na, K, Rb, Cs, and Fr. They have 1 valence electron which makes them the most active metals. They are known because they are soft and can be cut by a knife, like they were butter.
<u>Halogens </u>are placed in the group 17 of the periodic table, This family is formed by F, Cl. Br, I, At, and Ts. They have seven valence electrons, which make them very active and ready to combine with metals either covalently or ionically.