A
A substance made of only one type of particle
pure substance
The method used to remove stones from rice.
handpicking
The substance that is dissolved
solute
Tea leaves are separated from tea.
filtration
In salt water, salt is the ______.
solute
A pure substance consisting of only one type of atom.
element
The method used to separate sand from gravel.
sieving
The substance that does the dissolving.
solvent
Colours in black ink are separated.
paper chromatography
In sugar water, water is the ______.
solvent
A pure substance formed when two or more elements chemically combine.
compound
The method used to separate sand from water.
filtration
A homogeneous mixture formed when a solute dissolves in a solvent.
solution
Water is obtained from sea water.
distillation
Calculate the purity of a metal containing 90 g copper in a 100 g sample.
90%
A mixture in which different parts can be seen.
heterogeneous mixture
The method used to obtain salt from sea water.
evaporation
The term for a substance that can dissolve in a solvent.
soluble
Raisins are removed from peanuts.
handpicking
A student keeps adding salt to a glass of water. After some time, the salt no longer dissolves and settles at the bottom. What is this type of solution called?
saturated solution
A mixture in which the components are evenly distributed
homogeneous mixture
The method used to obtain pure water from a sugar solution.
distillation
A solution that cannot dissolve any more solute.
saturated solution
Fine flour is separated from larger bran particles.
sieving
Student A dissolves 20 g of sugar in 100 mL of water. Student B dissolves 40 g of sugar in 300 mL of water. Which student has the more concentrated solution?
Student B