3.x Key Chemical Reactions (GCSE Chemistry)

The following is a GCSE Chemistry test covering '3.x Key Chemical Reactions'

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Question 1

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Why do reactions occur faster at higher temperature?

What is the effect on reaction rate if temperature increases?

What happens when water is added to anhydrous copper sulfate?

If no overall change is observed in a reaction, how would you describe it?

What is the symbol `?` used for in reactions?

What is the solid left called when hydrated copper sulfate is heated?

What is a common indicator of an exothermic reaction?

For an effective heat pack reaction, what is critical?

What type of reaction transfers heat to the surroundings?

What happens to hydrated substances when heated strongly?

How do hand warmers generate warmth?

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