WorksheetsBurning Magnesium
Total questions: 10
Worksheet time: 5mins
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
Burning magnesium is an example of a __________ reaction.
chemical
physical
biological
All the following are physical reactions, except ...
boiling water in a kettle
melting ice
ironing a dress
burning a match
It is advised not to look directly at the flame when magnesium is burning, which of the following is the reason?
Magnesium can easily catch fire
Watching the flame directly could harm your eyes
Burning magnesium is a chemical reaction
Magnesium burns with a bright _________ flame.
white
red
blue
green
Magnesium is a/an __________________.
compound
ion
element
electron
In a chemical reaction,
no new substance is formed
a new substance is formed
products and reactants have the same properties
reactants are not needed
Melting candle wax is a ________________ reaction.
chemical
physical
biological
Burning a candle is an example of a ___________ reaction.
chemical
physical
biological
