Balance the skeletal equation given for the reaction of octane, C8H18, a component of gasoline with oxygen gas: C8H18(l) + O2(g) ? CO2(g) + H2O(l)
117. What is the class of the reaction in question 96?
118. Balance the skeletal equation given for the reaction of magnesium metal with hydrochloric acid: Mg(s) + HCl(aq) ? MgCl2(aq) + H2(g)
119. What is the class of the reaction in question 98?
120. A reaction occurs when a piece of silvery metal is placed in a solution of HCl(aq). Is the metal zinc or silver? How would you know?
121. Indicate whether KOH(aq) is an electrolyte or a non electrolyte.
122. Indicate whether HBr(aq) is an electrolyte or a non electrolyte.
123. Indicate whether CH3OH(aq) is an electrolyte or a non electrolyte.
124. Indicate whether CaCl2(aq) is an electrolyte or a non electrolyte.
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