Chemical Reactions 2

Rachel Brown
Flashcards by Rachel Brown, updated more than 1 year ago
Rachel Brown
Created by Rachel Brown almost 6 years ago
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Cards on chemical reactions

Resource summary

Question Answer
When is a new substance always formed? In a Chemical Reaction.
Are Chemical Changes reversible or irreversible? Irreversible
How can you tell that a Chemical reaction has occured? There is a: Colour Change A gas is given off Most involve a Energy Change
In a displacement Reaction if there is a big difference between the reactivity of the two metals, what will happen to the temperature? There will be a temperature increase than if the metals are similar in their reactivity.
What will happen to the temperature if there is no chemical reaction? There will be no temperature increase.
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