Preliminary Chemistry Assessment Task 1 2010
Topic:
The Chemical Earth
Name: _________________
Date Due:
Friday 5/3/10 period 3
Notification Date:
Tuesday 16/2/10
Weighting:
25% (Knowledge & Understanding – 5%
Skills in Thinking & Problem Solving – 20%)
Outcomes being tested: P1 – P6, P10, P12 – P16
You will be assessed on
 identify data sources, gather, process and analyse information from secondary

sources to identify the industrial separation processes used on a mixture
obtained from the biosphere, lithosphere, hydrosphere or atmosphere and use
the evidence available to:
- identify the properties of the mixture used in its separation
- identify the products of separation and their uses
- discuss issues associated with wastes from the processes used
analyse information by constructing or using models showing the structure of
metals, ionic compounds and covalent compounds
Part A: Research
Select an industry (agriculture, mining or manufacturing) that involves the
separation of a mixture obtained from the biosphere, lithosphere, hydrosphere
OR atmosphere.
You are to research the following
- property or properties of the mixture used in its separation
- the product(s) of the separation and their use(s) of the ‘useful’ ones
- the industrial separation processes used on the mixture to obtain the
product(s)
- issues associated with wastes from the processes used.
 On the due date you will sit a closed book exam to answer questions on your
research.
 Your rough notes need to be submitted. You need to tabulate your research.
(Maximum length: 1 A4 sheet of paper)
 Include an annotated bibliography (minimum 1 internet and 1 ‘other’ source).
You need to have three to four sources. Refer to College diary for correct
layout of references.
Part B: Model
i)
Construct a 3 dimensional model to demonstrate the structure of either
an ionic compound or a covalent compound. You will be assigned a
compound in class.
Your compound is _________________________
ii)
If you were assigned an ionic compound than for part ii) you will need
to draw a 2 dimensional model to demonstrate the structure of a
covalent compound. If you were assigned a covalent compound in part
i) you will need to draw a 2 dimensional model to demonstrate the
structure of an ionic compound.
Your model in parts i) and ii) should show more than one formula unit or
molecule of the compound.
iii)
Draw a 2 dimensional model to demonstrate the structure of a metal.
For each of the three models describe the bonding within the structure
and give an example of another compound or metal exhibiting this type
of structure.
Describe the validity and reliability of your models and give two
limitations of your three dimensional model.
Each model should be no larger than one A4 sheet of paper and its structure
clearly labelled.
Include an annotated bibliography which includes a minimum of two different
sources.
Marking Criteria - Research
Tabulation
Acknowledgement of correctly cited sources
Range of sources (min. 1 internet, 1 ‘other’)
Annotated bibliography (reliability, usefulness and validity)
Examination
TOTAL:
/5
/2
/2
/6
/25
/40
Marking Criteria – Model
Model 1 – 3D
Title
Proportion and size
Stability of model
Model predominantly 3D
Keys / clear labelling
Presentation
Labelled bonding represented accurately
Description of situation in which this type of bonding occurs
Name of a compound showing this type of bonding specified
/1
/2
/3
/2
/5
/3
/2
/5
/1
Model 2 – 2D
Title
Proportion and size
Keys / clear labelling
Presentation
Labelled bonding represented accurately
Description of situation in which this type of bonding occurs
Name of a compound showing this type of bonding specified
/1
/2
/5
/2
/2
/5
/1
Model 3 – 2D
Title
Proportion and size
Keys / clear labelling
Presentation
Labelled bonding represented accurately
Description of situation in which this type of bonding occurs
Name of a metal showing this type of bonding specified
/1
/2
/3
/2
/1
/3
/1
Acknowledgement of sources
Range of sources (min. 1 internet, 1 ‘other’)
Annotated bibliography
Reliability and validity of models
Limitations of 3D model outlined
TOTAL:
/2
/2
/2
/2
/2.
/65
Preliminary Chemistry Assessment Task 1 2010
Topic:
The Chemical Earth
Name: _________________
Identify the type of industry which is involved with the separation of your
Chosen mixture
/1
Identify which sphere of the Earth your mixture has been obtained from.
/1
Outline the mixture to be separated.
/2
Identify the properties of components used to separate the mixture and refine the final
product.
/2
Identify the product(s) of separation.
/2
Discuss one issue associated with wastes from the processes used.
Describe the industrial processes used on the mixture to obtain the product(s)
/5
/6
Draw a flow diagram to show the industrial separation processes used on your chosen
mixture and the products of separation.
/6
Sodium Iodide, NaI
Sodium Chloride, NaCl
Lithium Chloride, LiCl
Lithium Fluoride, LiF
Lithium Iodide, LiI
Lithium Bromide, LiBr
Potassium Iodide, KI
Potassium Fluoride, KF
Barium Oxide, BaO
Magnesium Oxide, MgO
Calcium Oxide, CaO
Potassium Bromide, KBr
Potassium Chloride, KCl
Water, H2O
Hydrogen Chloride, HCl
Carbon dioxide, CO2
Boron trifluoride, BF3
Ethane, C2H6
Ammonia, NH3
Carbon tetrachloride, CCl4
Methane, CH4
Ethyne (acetylene), C2H2
Ethene (ethylene), C2H4
Hydrogen sulfide, H2S
Phosphorus trichloride, PCl3
Phosphorus pentachloride, PCl5
Sodium Iodide, NaI
Sodium Chloride, NaCl
Lithium Chloride, LiCl
Lithium Fluoride, LiF
Lithium Iodide, LiI
Lithium Bromide, LiBr
Potassium Iodide, KI
Potassium Fluoride, KF
Barium Oxide, BaO
Magnesium Oxide, MgO
Calcium Oxide, CaO
Potassium Bromide, KBr
Potassium Chloride, KCl
Water, H2O
Hydrogen Chloride, HCl
Carbon dioxide, CO2
Boron trifluoride, BF3
Ethane, C2H6
Ammonia, NH3
Carbon tetrachloride, CCl4
Methane, CH4
Ethyne (acetylene), C2H2
Ethene (ethylene), C2H4
Hydrogen sulfide, H2S
Phosphorus trichloride, PCl3
Phosphorus pentachloride, PCl5