PACK 2026 FULLY SOLVED QUESTION SET
◉ physical processes.
Answer: mixtures can be separated by...
◉ simple distillation.
Answer: evaporating water and condensing it in a separate
container
◉ fractional distillation.
Answer: evaporating liquids with different boiling points
◉ filtration.
Answer: screening and sieving to remove solids
◉ chromatography.
Answer: using a solvent to separate pigments so you can identify
them
◉ crystallisation.
,Answer: evaporating a solution to a small volume and leaving it to
cool to form crystals
◉ chemically bonded.
Answer: a mixture is made from different substances that aren't...
◉ a mixture designed for a use.
Answer: a formulation is...
◉ mixing components in carefully measured amounts.
Answer: a formulation is made by...
◉ the solvent moves through the paper.
Answer: in paper chromatography...
◉ different compounds to different distances depending on their
attraction to the paper and solvent.
Answer: chromatography carries...
◉ distance moved by compound ÷ distance moved by solvent.
Answer: Rf value =
,◉ single spot in all solvents.
Answer: in chromatography, a pure compound produces a...
◉ damp blue litmus paper red and then bleaches it white.
Answer: chlorine turns...
◉ glowing splint relight.
Answer: oxygen gas test makes a...
◉ squeaky pop sound.
Answer: hydrogen gas test makes a...
◉ limewater go cloudy.
Answer: carbon dioxide gas test makes...
◉ warmth, shelter, food and transport.
Answer: the Earth provides humans with...
◉ food, timber, clothing and fuels.
Answer: natural resources along with agriculture give us...
◉ processes to make energy and materials.
, Answer: finite resources involve...
◉ there is only a certain amount of them.
Answer: finite means...
◉ using the Earth's resources in a way that can continue in the
future..
Answer: sustainable resources involves...
◉ meet the needs of people today without impacting on the needs of
people in the future.
Answer: sustainable development should...
◉ safe to drink.
Answer: potable water is...
◉ dissolved salts and microbes.
Answer: potable water has a low enough level of...
◉ pure water.
Answer: potable water isn't...