Реферат: Rates Of Reaction Essay Research Paper Rates

Rates Of Reaction Essay, Research Paper

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 the magnesium hits the acid when dropped in, it fisses and

then disappears giving of hydrogen as it fisses and it leaves behind a solution

of hydrogen chloride.

The activation energy of a particle is increased with heat. The particles

which have to have the activation energy are those particles which are moving,

in the case of magnesium and hydrochloric acid, it is the hydrochloric acid

particles which have to have the activation energy because they are the ones

that are moving and bombarding the magnesium particles to produce magnesium

chloride.

The rate at which all reactions happen are different. An example of a fast

reaction is an explosion, and an example of a slow reaction is rusting. In any

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