Displacement Reactions
Presentation
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Chemistry
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6th - 8th Grade
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Practice Problem
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Easy
Joseph Davids
Used 22+ times
FREE Resource
8 Slides • 2 Questions
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DO NOW TASK
We have discussed previously how we can separate components of mixtures.
What different methods can we use to break apart compounds and extract some of its component parts?
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Example 1
Adding an iron nail to is added to a blue copper sulfate solution
Iron is more reactive than copper.
A chemical change occurs.
Iron atoms displace the copper atoms, bonding with the sulfate to make iron sulfate, which is a pale green solution.
Reddy-brown Copper atoms form on the outside of the iron nail and some collect on the bottom of the beaker.
iron + copper sulfate => copper + iron sulfate
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Open Ended
From your experience of the experiments we have done in the lab, what might you notice that might make you think a chemical reaction had taken place? write a short answer below
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Open Ended
The reaction of Iron (Fe) and a copper sulfate solution takes a week to happen. When magnesium (Mg) is added to a solution of copper sulfate, the solution changes from blue to colourless much faster than with iron. Which is more reactive, magnesium or iron? If both reactions happened quickly, what other signs might you see that indicated Mg was more reactive than Fe? write a short answer below
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Testing Reactivity
If we test lots of different elements in the same way, we can build up what we call a REACTIVITY SERIES.
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The Reactivity Series
The further substances are from each other in the series, the more vigorous the displacement reaction will be.
Mainly lists metals, but non-metals carbon and hydrogen are often included because they can be used to extract metals that come below them in the series.
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DO NOW TASK
We have discussed previously how we can separate components of mixtures.
What different methods can we use to break apart compounds and extract some of its component parts?
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