Chemical Reaction Flashcards
How to spot a chemical reaction
Change in substance produced
Change in colour
Heat given offgas given off
Explode
When substances react together to form a new substance
A chemical reaction has took place
When a chemical reaction has taken place
The substance cannot be changed back easily
A physical change
When a substance changes state but not identity
This change is easily reverse
Chemical change
A change which is difficult to reverse
Displacement reaction
Reaction which a more reactive metal takes the place of a less reactive metal in a compound
Salt
The product of a naturalisation reaction
Neutralisation
A chemical reaction which the hydrogen ions in an acid are replaced by metal ions forming a salt
Copper carbonate
Green powder when heated turns a black powder
Thermal decomposition
Chemical reaction which uses heat to break something down
Endothermic
Reaction which requires energy to be taken in before it can take place this can be form of light or heat
Exothermic
Reaction that gives out heat
Combustion
Reaction which occurs when a substance burns to produce heat and oxides
Product
A substance formed in a chemical reaction
Reactant
Substance taking part in a chemical reaction
