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Last edited 25 days ago by Learn LoopHQ.

Chapter: 04. Mixtures Separations Of Mixtures

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A pure substance contains the _ _ _ _ _ _ _ _ _ _ _ _ _ kind of particles.

same

Mixtures are _ _ _ _ _ _ _ _ _ _ _ _ _ substances.

impure

Components of a mixture _ _ _ _ _ _ _ _ _ _ _ _ _ their individual properties.

retain

A homogeneous mixture’s components _ _ _ _ _ _ _ _ _ _ _ _ _ be seen separately.

cannot

An emulsion is a mixture of two or more _ _ _ _ _ _ _ _ _ _ _ _ _ liquid components.

immiscible

A compound is made up of two or more elements combined _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

chemically

The composition of a mixture is _ _ _ _ _ _ _ _ _ _ _ _ _.

variable

Energy is _ _ _ _ _ _ _ _ _ _ _ _ _ released nor absorbed during the formation of a mixture.

neither

A mixture of sugar and water shows that mixtures do not have _ _ _ _ _ _ _ _ _ _ _ _ _ properties.

definite

Mixtures do not have fixed _ _ _ _ _ _ _ _ _ _ _ _ _ and _ _ _ _ _ _ _ _ _ _ _ _ _ points.

melting, boiling

We need to separate components of a mixture to remove _ _ _ _ _ _ _ _ _ _ _ _ _ substances.

undesirable/harmful

The method of separating undesirable substances from a mixture by hand is called _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

hand-picking

Winnowing is used for separating _ _ _ _ _ _ _ _ _ _ _ _ _ substances from heavier ones.

light

A sieve is made of a _ _ _ _ _ _ _ _ _ _ _ _ _ mesh or a plastic net.

wire

The process where a solid directly changes into its gaseous state on heating is called _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

sublimation

The settling down of heavier insoluble solid particles at the bottom of a liquid is called _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

sedimentation

The clear liquid above the sediment is called _ _ _ _ _ _ _ _ _ _ _ _ _.

supernatant

_ _ _ _ _ _ _ _ _ _ _ _ _ is used to help fine solid particles settle down faster in a liquid.

The insoluble solid particles that remain on the filter during filtration are called _ _ _ _ _ _ _ _ _ _ _ _ _.

residue

The process during which a liquid changes into its vapour on heating is called _ _ _ _ _ _ _ _ _ _ _ _ _.

evaporation

Graphene-based sieves can remove _ _ _ _ _ _ _ _ _ _ _ _ _ from sea water.

salt

A mixture with more than two components can be separated by using _ _ _ _ _ _ _ _ _ _ _ _ _ than one method.

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