Chemical Reactions Flashcards
1
Q
What are the signs that a chemical reaction has ocured?
A
Temperature change, colour change, light, smoke, sound, sparks ect.
2
Q
What is a displacement reaction?
A
The more reactive metals replace the less reactive metals creating a new substance.
3
Q
Can you reverse a chemical reaction?
A
No they are irreversible.
4
Q
What is combustion?
A
Where you burn somethings to create a new substance.
5
Q
What is oxidation?
A
When something reacts with oxygen.
6
Q
What is thermal decomposition?
A
A chemical decomposition caused by heat.
