If an endothermic reaction is at equilibrium, how will the equilibrium shift when heat is added to the reaction? View Available Hint(s)

Balance the following chemical equation (if necessary): \[ \mathrm{Ca}(\mathrm{s})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow \mathrm{CaO} \text { (s) } \]

How many oxygen atoms are located on the reactant side of the following chemical equation? \( \mathrm{C}_{3} \mathrm{H}_{8}(\mathrm{~g})+5 \mathrm{O}_{2}(\mathrm{~g}) \rightarrow 3 \mathrm{CO}_{2}(\mathrm{~g})+4 \mathrm{H}_{2} \mathrm{O}(\mathrm{g}) \)

Which of the following processes is nost suitable for extracting sodium chloride from sea water? A. electrolysis B. crystallisation C. simple distillation O. fractional distillation

Balance the following chemical equation (if necessary): \( \mathrm{MnO}_{2}(\mathrm{~s})+\mathrm{HCl}(\mathrm{aq}) \rightarrow \mathrm{MnCl}_{2}(\mathrm{aq})+\mathrm{H}_{2} \mathrm{O}(\mathrm{l})+\mathrm{Cl}_{2}(\mathrm{~g}) \)

\( 2 LiOH ( s ) \rightarrow Li 2 O ( s ) + H 2 O ( l ) \)