Reactions of Metals

Please use a tank filled with gas to burn other metals. This method can be used to compare the reactivity of different metals and their oxygen by observing the reaction.

Of course, other metals will react with oxygen but will be somewhat more than sodium like potassium. Other people like gold did not respond at all

Some metals also react with water, but as with their reaction with oxygen, they react in different ways. By placing the metal in a cold aquarium you can observe the reaction between metal and water.

Alternatively, you can use steam (hot water) instead of cold water to observe differences in metal reactions.

Note: The first three of the above table produce hydroxide and the remainder react to produce oxides to produce the remaining hydroxide.

The production of hydroxide (base) can be tested by adding a universal indicator (UI) to the reaction vessel, and in the presence of these hydroxides the UI changes from green to purple.

To test the release of hydrogen, place a luminous splint over the reactive metal.

Let's examine the reaction between metal and acid and see if they also help to distinguish the differences in reactivity.

Comparing the metal and acid reaction results with the oxygen and water reaction results, you can see that the repeated reaction sequence is the same.

When metal is placed in dilute acid, the metal may react most violently. This type of reaction is called substitution reaction. The metal displaces the hydrogen in the acid, which means that hydrogen is released. It is dangerous to react with potassium, sodium, calcium. It will explode violently when placed in dilute acid. Low reactivity metals such as aluminum and zinc do not react in a hazardous way, so they can be placed in dilute acid to see how they respond. Metals placed on acid do not explode or burn. Metal emits bubbles, we already know that they are hydrogen

OBJECTIVE: To study the reaction of typical acids (dilute hydrochloric acid) with metals, metal oxides, carbonates and bases. The experiment was completed using the following materials. The dropper bottle contained 0.1 M hydrochloric acid or lime water (calcium hydroxide) and sodium hydroxide solution. <li> Dripper bottle bromothymol blue indicator <li> Small sample of the following metals: zinc, copper shavings, magnesium and iron <li> copper (II) oxide powder <li> magnesium oxide <li> marble chips Calcium <li> Sodium carbonate <li> 12 test tube racks <li> Bunsen burners <li> plugs or corks <li> match wax cones </ ul> PROC