Chromatography Method

Two or more substances that are mixed together but not chemically combined is a ___

• compound
• mixture
• keratin
• chromatography

Two or more substances that are chemically combined is a ___

• compound
• mixture
• solvent
• solute

Tags

NGSS.MS-PS1-1

Ink can be separated by a method of -----------------------------------------------

• distillation

• filtration

• chromatography

• sedimentation

chromatography separates the mixture of dyes on the basis of their ----------------------------

• density
• solubility
• gravity
• boiling point

Which of the following is correct about chromatography?

• It separates those solutes that dissolve in the same solvent.

• It separates those solutes that dissolve in different solvents.

• It separates a solute that dissolves in a solid solvent.

• It separates gaseous solutes from liquid solvents.

Why must the base line be drawn in pencil and not pen?

• a) Pencil is good at keeping substances in place.
• b) Pencil is soluble in water
• c) Pencil is insoluble in water
• d) Pencil is not coloured

Tags

NGSS.HS-PS2-6

When setting up a chromatography experiment, the water (solvent) must be ___________ the pencil line.

Chromatography could be used to separate which of the following mixtures (tick all that apply)

• Food colourings from skittles

• Sand from sea water

• Sugar from tea

• Inks from a pen

What is wrong with the way the student has set up their experiment (name one thing)

What is wrong with the way the student has set up their experiment (name one other thing)