WorksheetsY9 Pure and Impure
Total questions: 16
Worksheet time: 6mins
Name
Class
Date
1.
What is the process in the picture?
a)
Distillation
b)
Evaporation
c)
Filtration
d)
Solubility
2.
What is this process in the picture?
a)
Distillation
b)
Evaporation
c)
Filtration
d)
Chromatography
3.
What is the process in the picture?
a)
Distillation
b)
Evaporation
c)
Filtration
d)
Chromatography
4.
What is the process in the picture?
a)
Distillation
b)
Chromatography
c)
Evaporation
d)
Solubility
5.
What is the temperature a Liquid turns into a Gas?
a)
Melting Point
b)
Boiling Point
c)
Freezing Point
d)
Extraction Point
6.
What is a pure substance?
a)
Substance with no broken Atoms
b)
Substance containing only one element or one compound
c)
Substance that can mix with gold to make a shiny surface
d)
Substance that has a smooth surface
7.
What is a Mixture?
a)
Two or more different substances not chemically bonded
b)
Two or more substances chemically bonded together
c)
A single type of atom.
d)
Different substances that cannot be seperated
8.
What is a compound?
a)
Two or more DIFFERENT types of atoms chemically bonded
b)
Two or more atoms chemically bonded
c)
Two or more different substances not chemically bonded
d)
A single type of atom
9.
What is an Element?
a)
A positive charge of electrons
b)
A negative charge of electrons
c)
Substance containing one type of atom
d)
A mixture of compounds
10.
What happens to solubility as temperature increases?
a)
Halves the time atoms take to reproduce
b)
Stays the same
c)
Decreases
d)
Increases
11.
What is the Solvent
a)
A substance that can not dissolve
b)
Liquid that Solute dissolves into
c)
Substance that can dissolve in liquid
d)
A strong glue that binds electrons
12.
sugar is not soluble
a)
true
b)
false
13.
What molecules travel further during chromatography?
a)
Small, soluble molecules.
b)
Large, insoluble molecules.
c)
The fastest molecules.
14.
What is the name of the piece of paper at the end of a chromatography experiment?
a)
Chromatogram
b)
Filtrate
c)
Residue
15.
Chromatography is used to-
a)
physically separate inks and dyes
b)
chrome metal
c)
photograph evidence
d)
study chromosomes
16.
How does chromatography work?
a)
solvent propels components differently due to Newtons Laws
b)
solvent travels through paper to separate components of ink
c)
separate chemicals are combined to make ink mixture
d)
Same principles as the Kinetic Molecular Theory
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