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WorksheetsCHEMISTRY SET 2
Total questions: 22
Worksheet time: 2hrs 50mins
When something burns, it reacts with the __________ in the air.
Nitrogen
Oxygen
Carbon dioxide
Neon
When magnesium is burnt, a white substance is formed. This substance is ____________________.
Oxygen Magnetite
Magnesium sulfide
Magnesium oxide
Magnesium chloride
Combustion is a reaction in which a substance reacts with
hydrogen
Nitrogen
Oxygen
Chlorine
The other term used for burning is:
flammable
inflammable
combustion
none
Carbon + Oxygen = (a)
When magnesium ribbon burns in the presence of oxygen it produces:
magnesium iodide
magnesium chloride
magnesium oxide
none
The combustion of hydrogen is (a) reaction.
When iron rusts, it combines with (a) .
Fuels store energy in the form of _______________ energy.
kinetic
potential
chemical
none
What does a fuel need in order to burn?
fuel
electricity
oxygen
hydrogen
In a word equation, the starting chemicals are called...
reactants
products
ingredients
