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Flashcards in Chemical Reactions Deck (6)
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4 Signs that a chemical reaction has happened?

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


What is an Exothermic reaction

A reaction which releases energy ergo warm/hot to touch


What is an Endothermic reaction?

A reaction which absorbs heat ergo feels colder


What can make the rate of reaction quicker?

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


What can slow down the rate of reaction?

Lower Concentration, Big particle size, Decrease in temperature


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