Topic
Q:
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продуктів реакції
\( \mathrm{H} 2(г)+\mathrm{Br} 2(г) \rightleftarrows 2 \mathrm{HBr}(г) \)
\( \mathrm{C} 2 \mathrm{H} 6(г) \rightleftarrows \mathrm{C} 2 \mathrm{H} 4(г)+\mathrm{H} 2(г) \)
\( 2 \mathrm{SO} 2(г)+\mathrm{O} 2(г) \rightleftarrows 2 \mathrm{OO} 3(г) \)
\( 2 \mathrm{NH} 3(г) \rightleftarrows \mathrm{N} 2(г)+3 \mathrm{H} 2(г) \)
Q:
Domanda 4. Individuare la relazione matematica corretta tra le costanti di equilibrio \( K_{p} \) e \( K_{c} \) per la
seguente reazione in equilibrio a una certa temperatura \( T \) :
\[ \mathbf{C}_{(\mathbf{s})}+\mathbf{2} \mathbf{H}_{\mathbf{2 ( g )}} \leftrightarrows \mathbf{C H}_{\mathbf{4 ( g )}} \]
a. \( K_{p}=K_{c} \)
Q:
\( Br _ { 120 } + H _ { 20 } \rightarrow \)
Q:
What is the correct number of significant figures in the number
0.0025060 ?
Q:
Duna quantità pari a \( 3,8 \mathrm{~mol} \) di un gas perfetto biatomico
vene espansa a pressione costante \( p \). Il calore specifico a
pressione costante è uguale a \( 2,0 \times 10^{3} \mathrm{~J} /(\mathrm{kg} \cdot \mathrm{K}) \).
Calcola la massa di gas che viene espanso.
\( [55 \mathrm{~g}] \)
Q:
Which element is diamagnetic?
OF
F Li
Cd
Ob
Q:
Choose the ground state electron configuration for \( \mathrm{Ti}^{2+} \).
\( [\operatorname{Ar}] 4 s^{2} 3 d^{2} \)
\( [\operatorname{Ar}] 3 d^{4} \)
\( [\operatorname{Ar}] 4 s^{2} 3 d^{4} \)
\( [\operatorname{Ar}] 4 s^{2} \)
\( [\operatorname{Ar}] 3 d^{2} \)
Q:
b) Neutralization reaction is:
\( \begin{array}{ll}\text { (i) Precipitation reaction } & \text { (ii) Oxidation-Reduction Reaction } \\ \text { (iii) Complex formation reaction } & \text { (iv) Acid-base reaction }\end{array} \)
Q:
Which of the following electron configurations is IMPOSSIBLE?
\( 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{5} \)
\( 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} \)
\( 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{1} \)
\( 1 s^{2} 2 s^{4} 2 p^{6} 3 s^{2} 3 p^{3} \)
\( 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{3} \)
Q:
b) Neutralization reaction is:
\( \begin{array}{ll}\text { (i) Precipitation reaction } & \text { (ii) Oxidation-Reduction Reaction } \\ \text { (iii) Complex formation reaction } & \text { (iv) Acid-base reaction }\end{array} \)
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