Chemicals Flashcards
1
Q
Signs of a chemical change
A
Change of colour Give off a gas Gets hot/cold Gives out light Makes smells Form solids
2
Q
What is activation energy
A
Activation energy is the input energy to get a reaction started by breaking the chemical bonds
3
Q
What is precipitation
A
Precipitation involves two solution reacting to form an insoluble product
4
Q
What is a single displacement reaction
A
A single displacement reaction is when one element replaces another in a compound.
5
Q
What is a double displacement reaction
A
When two compounds react with each other and swap ions
6
Q
What is decomposition reactions
A
Decomposition is when a compound breaks up into the elements or into simpler compounds.
