Burning Flashcards
(19 cards)
when is oxide formed
when a metal burns in the air, the metal combines with oxygen from the air
what are reactants
the chemicals you start with
what are products
the chemicals at the end
what does magnesium + oxygen make
magnesium oxide
what is combustion
another word for burning
what is needed to start a combustion reaction
some energy needs to be supplied at the beginning
what is needed to keep a fire going
fuel, oxygen and heat
what is a fire triangle
a triangle that shows oxygen of the left, heat on the right and fuel on the bottom
what happens if any part of the triangle is taken out
the fire will go out
why is water often used to put out fires
because it takes away the heat
what fire should water not be used on and why
oil or petrol fires because it makes the burning fuel spread out
how to fire blankets, foam, powder or carbon dioxide extinguishers put out fires
by stopping oxygen from getting to the flame
what do fossil fuels contain a lot of
carbon and hydrogen
what happens when fossil fuels burn
they use up oxygen from the air
what is produced when fossil fuels burn
water and carbon dioxide
fuel + oxygen
carbon dioxide + water
when does pollution occur
if there isn’t enough oxygen for complete combustion
what is formed if the oxygen supply is restricted further
carbon monoxide and soot (carbon)
what is smoke made up of
soot and any other solid particles, such a metal oxides
