Explosions Flashcards
1
Q
In all explosions…
A
There is a sudden increase in volume and a huge transfer of energy to the surroundings.
2
Q
Physical change
A
No new substances were made.
E.g. Melting, freezing…
3
Q
Chemical reaction
A
Atoms in the reactants are rearranged to form new products with different properties.
E.g. Hydrogen + oxygen—> water
4
Q
Increasing pressure
A
- > increasing number of particles
- > decreasing the size of container
- > increasing the temperature
5
Q
Flammable
A
When a substance can be burnt
