A substance having a fixed volume and shape would be a
Metals are always
dull solids electrical insulators good conductors of heat magnetic
When a solid turns to a gas without becoming liquid, the solid
condenses distils evaporates sublimes
In sea water, salt is the
solute solution solvent sublimate
A test for water uses
anhydrous copper sulphate copper oxide
indicator paper potassium manganate (VII)
The gas which makes up about 20% by volume of the atmosphere is
carbon dioxide hydrogen nitrogen oxygen
A substance which increases in mass when heated in air could be
copper copper carbonate copper oxide copper sulphate
The substance with the highest pH in this list is
dilute hydrochloric acid distilled water limewater vinegar
Pure salt crystals could be obtained from a mixture of sea water and sand by
evaporating all the water fractionally distilling the mixture
filtering the mixture and then evaporating the water
filtering the mixture and then removing the salt crystals from the filter paper