KS3 Y7 Strong Acids

Gap-fill exercise.

Name:_________________________Class:___________________Date:__________________

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button if available to get a clue. Note that you will lose points if you ask for hints or clues!
   acids      Alkalis      concentrated      corrosive      dangerous      dilute      diluted      eye      fertilisers      goggles      hand      harmful      hole      hydrochlo      irritant      itric      metals      paints      plosives      shampoo      skin      solvents      stone      sulphuric      warning labels      water      weak   
There are many that are very strong and we cannot taste them. They can attack , work and our . We call it .

Bottles containing these acids have on them.

There are three main acids used in laboratories. They are acid, n acid and ric acid. They can be bought in the form which means most of the chemical in the bottle will contain the acid.

They can also be bought in the form. This means that is added to make it and er.

Even if diluted an acid can be too to taste.

Acids usually have two types of warning signs. One is corrosive which shows a with acid dripping on it and a appearing on the . The other is a hazard label with a black cross. This means it is an and .

Sulphuric acid is used to make , washing liquid and ; nitric acid is used to make , ex and medicine and ric acid is used to remove rust from and to prepare important .

are chemicals that are also corrosive. They also have similar hazard symbols.

Whenever handling with acids or alkalis we must wear or protection. If we spill it on our hands we must wash it with plenty of . This will dilute the acid or alkali so it gets safer.

 

 

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