LI7/8-combustion and respiration Flashcards
1
Q
is combustion endothermic or exothermic
A
exothermic
2
Q
what is a combustion reaction
A
a type of oxidation When fuel and oxygen react it releases the heat and light energy.
3
Q
a word equation for combustion
A
fuel+oxygen -carbon dioxide+water
4
Q
what is a incomplete reaction
A
if not enough oxygen is available for combustion different reactions also happen
methane +oxygen -carbon+water
5
Q
what is the result of an incomplete reaction
A
this reaction creates solid carbon but other products can be made
5
Q
what is an oxidation reaction
A
when substances burn in oxygen
eg
magnesium+oxygen -magnesium oxide
6
Q
what happens to mass when something burns
A
they loose mass
7
Q
A
