Law Of Conservation Of Mass Flashcards
1
Q
What happens to the particles in a chemical reaction
A
They are not created or destroyed they can only be re-arranged
2
Q
When does Corrosion happen to metals
A
Corrosion happens to metal when they contact with oxygen
3
Q
What happened to the nail in the water and air?
A
It rusted as it changed an orange colour
4
Q
What happened to the iron nail in boiled water with no air
A
It will not rust
5
Q
What happened to the iron nail in oxygen but no water
A
Will not rust (has done nothing)
6
Q
What is rusting
A
The formation of hydrated iron oxide which requires both oxygen and water
7
Q
What to use to prevent rusting
A
Zinc coating, painting, coating in plastic and coating in oil
