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Flashcards in Chemical Reactions Deck (6)
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1

4 Signs that a chemical reaction has happened?

Effervescence ( gas released), colour change, temperature change, precipitation (solid formed)

2

What is an Exothermic reaction

A reaction which releases energy ergo warm/hot to touch

3

What is an Endothermic reaction?

A reaction which absorbs heat ergo feels colder

4

What can make the rate of reaction quicker?

Higher concentration, Smaller particle size, Increase in temperature, Catalyst

5

What can slow down the rate of reaction?

Lower Concentration, Big particle size, Decrease in temperature

6

What is a catalyst?

A catalyst is any chemical that speeds up a reaction without being used up. Also it will still be the same at the end of reactions