Yr8 reactivity revision
Presentation
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Physics
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7th Grade
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Medium
Lisa Peacock
Used 4+ times
FREE Resource
16 Slides • 26 Questions
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yr8 reactivity revision
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Everyday acids
Acids are not always strange and unusual chemicals. They can be found in the most common of objects.
They all have asour taste, such as lemon or vinegar
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Everyday Alkalis
The same goes for Alkalis, they are much more common than you might imagine
They also feel soapy if you rub them between your fingers, like toothpaste or soap.
However, both Acids and Alkalis are corrosive and will eat into materials
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Fill in the Blanks
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Neutralisation
Acids can be neutralised by adding an alkali to them
Neutralisation gives a solution a pH of 7 – so it is no longer acidic or alkaline.
To neutralise a strong acid, you would need to add a strong alkali.
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Reactivity series
A list of metals, ranging from the most to least reactive.
*we include Carbon and Hydrogen even though they are not metals, as a comparison as they are reactive.
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Displacement Reactions
This is where a more reactive metal can displace a less reactive metal
Luke is stronger than Han, so displaces him out of the couple with Leia
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Metal1 is stronger than metal2 in the metal oxide and so replaces it.
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Displacement reactions
Here, Magnesium is the strongest metal so will displace any of the other metals in this list.
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But if we were to introduce another metal e.g. Tin (Sn), this would change the order of reactivity.
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In your books - link the correct reaction to the correct products
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yr8 reactivity revision
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