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3.x Key Chemical Reactions (Year 10 Chemistry)
The following test is covering '3.x Key Chemical Reactions' for Year 10 Chemistry.Incorrect: 0
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Question 1
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What energy change occurs in an exothermic reaction?
What is the symbol `?` used for in reactions?
What type of reaction transfers heat to the surroundings?
When copper sulfate is hydrated, what colour does it become?
In chemical hand warmers, why is an exothermic reaction essential?
What is the solid left called when hydrated copper sulfate is heated?
When copper sulfate turns blue from white, it is due to what?