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Investigate the Reactions Between Metal Oxides and Acids

In this worksheet, students will look at how metal oxides react with acids and what is produced by these reactions.

'Investigate the Reactions Between Metal Oxides and Acids' worksheet

Key stage:  KS 3

Year:  Year 9 Science worksheets

Curriculum topic:   Chemistry: The Periodic Table

Curriculum subtopic:   pH: Metal and Non-metal Oxides

Difficulty level:  

Worksheet Overview

This activity is all about metal oxides.


You may think that you've never come across these, but you will have done even if you didn't know! Have you ever found rust on your bike because you left it out in the rain? Rust is actually iron oxide, where the iron in the bike frame has reacted with oxygen in the air to produce iron oxide. Hopefully, your bike wasn't as rusty as the piece of metal below!


rusty metal


Metal oxides contain atoms of a metal combined with atoms of oxygen. The black powder shown below is copper oxide:


Pile of black powder isolated on white - stock photo 


Metal oxides react with acids to produce a salt and water. This can be shown in an equation:


acid + metal oxidesalt + water


The word  'salt' can be confusing because we use the term to describe the salt that we put on our food. This type of salt is actually sodium chloride, but there are many other types of salts that can be created too.




The salt produced from these reactions is dependent on the acid that is used. Metal oxides form chloride salts when reacting with hydrochloric acid, nitrate salts when reacting with nitric acid and sulfate salts when reacting with sulfuric acid.


An example of each type of salt formed is shown in the equations below:


Chloride Salts

hydrochloric acid + sodium oxidesodium chloride + water

2HCl+ Na2O2NaCl + H2O


Sulfate Salts

sulfuric acid + calcium oxidecalcium sulfate + water



Nitrate Salts

nitric acid + copper oxidecopper nitrate + water

2HNO3+ CuOCu(NO3)2 + H2O


It is important to learn the formulae of the acids, as they are the three most commonly used acids in the science lab. 


Let's have a go at some questions now.

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