Metal reactions in

acids.

What is an acid ?Acids in a solution have a pH below 7.0,  releases hydroxyl ions in water. Acids are divided into two main classes: (1) Strong acids are very aggressive and cause severe skin burns, examples are hydrochloric acid, nitric acid, and sulfuric acid. (2) Weak acids are mildly aggressive and normally do not affect skin, examples are acetic acid (vinegar), citric acid (citrus fruit juice acid), and tartaric acid (used in making mayonnaise). Also called natural or organic acids.

Quick facts about metal reaction• When two or more metals react

something new is formed.• When there are two or more atoms bonded it is called a compound.• Metals release hydrogen, H.•The metals react in different speeds, some react quicker than others due to some metals being more reactive than others.

• They would need energy but depends on what charge it is.

• They would have to collide and react for them to make something.

The Reactivity Series This is the reactivity series and it shows which metals reacts most with acid. As you can see Potassium is the most reactive metal in the series and Platinum is the least. Platinum is used for jewellery because of it’s low reactive over many years. Some metals react vigorously with water. Some slowly react but still will have a quite lot of energy to expose. Some metals may react but over a long time like Copper or Gold.

The atoms in a solid metal are

held together by metallicbonding

sodium - the metal bursts into flames, a very strong reactionmagnesium - the metal reacts quickly with the acid, producing lots of bubbles

iron - the metal reacts slowly, producing a few bubbles

lead - the metal reacts very slowly, producing very few bubbles

copper - no bubbles, no reaction with acid

Do all metals react with acids in the same way?

What do you get whenYou put a metal in

acid?Metal + Acid Products

magnesium (Mg) HCL magnesium chloride + hydrogen (MgCl+H)sodium (Na) HCL sodium chloride + hydrogen (NaCl+H)aluminium(Al) HCL aluminium chloride + hydrogen (AlCl+H)iron (Fe) HCL iron chloride + hydrogen (FeCl+H)lead (Pb) HCL lead chloride + hydrogen (PbCl+H)

WHAT HAVE I LEARNT ?On the topic of metal reactions in acids, I have learnt that a salt and hydrogen are produced when a metal and an acid react. Also, in class we have done an experiment on metal reactions, in which there were different types of results as the more reactive solutions vigorously fizzed, slightly heated the test tube as well as making noises like ‘pop’. Where as, other metals that aren’t as reactive only bubbled a tiny bit or did not react at all.

If you add Mg metal to hydrochloric acid , the Mg will dissolve and will form bubbles of hydrogen gas . As a result of the reaction, water vapour will also be released .the hydrogen atoms form H2 gas, they leave behind Then, the Mg2 will bond with the Cl- ions. Here is the single replacement reaction equation: Mg( + 2 HCl( → MgCl2 + H2

Description of magnesiumReacting with hydrogen

SUMMARY OF REACTIONSmetal + acid → salt + hydrogenmetal oxide + acid → a salt + water

metal hydroxide + acid → a salt + water These are the reactions you need to know.acid + metal carbonate → a salt + water + carbon

dioxideacid + metal hydrogen carbonate → a salt + water + carbon dioxide

by Bobby & Manmeet & Sunny