En los siguientes casos, señala cuando un aumento de la presión favorece a los reactivos y cuando productos: \( \begin{array}{ll}\text { a) } \mathrm{Cl}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{Cl}(\mathrm{g}) & \text { c) } 2 \mathrm{NO}(\mathrm{g})+\mathrm{O}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}_{2}(\mathrm{~g}) ; \\ \text { b) } 2 \mathrm{O}_{3}(\mathrm{~g}) \rightleftharpoons 3 \mathrm{O}_{2}(\mathrm{~g}) & \text { d) } \mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2}(\mathrm{~s}) \rightleftharpoons \mathrm{PbO}(\mathrm{s})+\mathrm{NO}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g})\end{array} \)

5 What is meant by the term hygroscopic when referring to brake fluid?

The half-life of the radioactive element unobtanium- 47 is 10 seconds. If 80 grams of unobtanium- 47 are initially present, how many grams are present after 10 seconds? 20 seconds? 30 seconds? 40 seconds? 50 seconds?

The electronic configuration of one element is \(1s^ 2 2s^ 2 2p^ 6 3s^ 2 3p^ 6 3d^ { 10} 4s^ 1\). What is same group which is recently discovered?

What does word root indicate in IUPAC name? b. Write the suffix for doubly bonded \( (\mathrm{C}=\mathrm{C}) \) alcohol. c. Ifsame substituent is repeated thrice, which prefix is added to word root? \& Write IUPAC name of \( \mathrm{CH}_{3}-\mathrm{CH}(\mathrm{CI})-\mathrm{CH}_{2}-\mathrm{COOH} \). e. Which group is selected as suffix if -OH and -CHO both are present in the compound?

Which is the correct Lewis structure for acetylene (\(C_ { 2} H_ { 2} \))?