Burning Fuels, Thermal Decomposition, Conservation of Mass Flashcards
1
Q
Fuel
A
A material that burns to transfer energy
2
Q
Fossil fuels
A
A fuel that is made from the remains of plants/animals
-I.e call, oil
3
Q
Combustion
A
-chemical reaction where a substance reacts quickly with oxygen and produces heat
4
Q
Oxidation
A
-chemical reaction where substances react with oxygen to make an oxide
5
Q
Non renewable
A
-fuels that can run out
6
Q
Thermal decomposition
A
- chemical reaction where a chemical is broken down using heat
- it makes different chemicals
7
Q
Decomposition reaction
A
A chemical breaks down without heat
8
Q
Conservation of mass means
A
- mass stays the same but bonds change
- no atoms are created/destroyed
- mass on the right side is the same as on the left side of an equation
9
Q
Closed system
A
- Mass before and after are the same
- all content has been retained
10
Q
Open system
A
- mass before and after are different
- gas formed after can escape and mass will appear lighter than before
