Rates of Reaction
BACKGROUND INFORMATION
What affects the rate of reaction? 1) The surface area of the magnesium. 2)
The temperature of the reaction. 3) Concentration of the hydrochloric acid. 4)
Presence of a catalyst.
In the experiment we use hydrochloric acid which reacts with the magnesium to
form magnesium chloride. The hydrogen ions give hydrochloric acid its acidic
properties, so that all solutions of hydrogen chloride and water have a sour
taste; corrode active metals, forming metal chlorides and hydrogen; turn litmus
red; neutralise alkalis; and react with salts of weak acids, forming chlorides
and the weak acids.
Magnesium, symbol Mg, silvery white metallic element that is relatively
unreactive. In group 2 (or IIa) of the periodic table, magnesium is one of the
alkaline earth metals. The atomic number of magnesium is 12.
Magnesium(s) + Hydrochloric acid(aq) = Magnesium Chloride(aq) + Hydrogen(g)
Mg + 2HCl = MgCl2
+ H2
In the reaction when......
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