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WorksheetsMaterials of the future
Total questions: 15
Worksheet time: 45mins
Ceramics are ______ materials that are generally unaffected by heat.
metallic
elastic
non-metallic
plastic
What is the main source of raw materials for the plastics industri?
rubber
monomer
cellulose
crude oil
Glass is a ceramic used in windows because it is _____.
brittle
easily broken
transparent
strong
Porcelain is a ceramic used in electricity pylons because it is _____.
white in colour
an insulator
dense
a conductor
What is a natural polymer used to make paper?
ethene
PVA
cellulose
rubber
Ceramics are ______ and strong, but brittle. They are good _____ of heat and electricity, and they are very _____.
hard, movers, unreactive
hard, insulators, unreactive
hard, conductors, reactive
Choose 2 processes that are exothermic reaction.
when ammonium nitrate is dissolved in water, the mixture gets colder
rubber reacting with sulphur, so it can be vulcanised
when acid and alkali are mixed, the temperature changes from 21 degree celcius to 26 degree celcius
when eggs are cooked, bonds in the protein molecules break
What is a natural polymers used to make tyres?
rubber
polyethene
polypropene
crude oil
Red mercury oxide (HgO) produces silvery mercury metal (Hg) and _____ gas when heated.
Hydrogen
Oxygen
Carbonite
Bricks are also ceramics, and they are used to make buildings because they are _____.
strong
brittle
rough
What is a small molecule that many of which comprise a polymer?
ethene
propene
monomer
monoxide
What is an artificial polymer used to make glue?
ethene
PVA
monomer
monoxide
White zinc _____ produces white zinc oxide (which is yellow when hot) and carbon dioxide gas when heated.
carbonate
carbon dioxide
carbon monoxide
Choose 2 processes that are endothermic reaction.
when ammonium nitrate is dissolved in water, the mixture gets colder
ethene polymerising to form poly(ethene)
when superglue sets, cross-links form between molecule
when eggs are cooked, bonds in the protein molecules break
White lithium nitrate produces white lithium oxide, brown fumes of _____, and oxygen when heated.
nitrogen dioxide
nitrogen carbonate
nitrogen oxide
