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no i dont have them...

Can some one help me with notes for this prac: Perform an investigation to model the behaviour of semiconductors, including the creation of a hole or positive charge on the atom that has lost the electron and the movement of electrons and holes in opposite directions when an electric field...

Can someone help me with this one: Analyse information to predict the surface temperature of a star from its intensity/wavelength graph. thanks!

Some one help me with this one: Identify data sources, gather, process and present information to assess the impact of improvements in measurement technologies on our understanding of celestial objects. thanks, nero_46

Follow the link: http://www.hsc.csu.edu.au/physics/core/space/9_2_3/923net.html all the info is there.

{Taken From CSSA Trial Answers} Named Emulsion: French Salad Dressing French dressing is an emulsion. It is made by adding very small amounts of mustard powder to a small amount of red wine vinegar. Small amounts are added bit by bit until all of it has been added. The mixture is shaken...

Good website: http://www.kcpc.usyd.edu.au/discovery/9.5.5-short/syllabus.html

So was mine!

Astrophysics and space would have two be my most favourite topics... as for the other two - i cant stand them!

Myself: 76% Highest: 87% Average:69%

same ...

Anyone doing industrial chemistry could i get some help with this one ... Identify data, gather and process information to identify and discuss the issues associated with the increased need for a natural resource that is not a fossil fuel and evaluate the progress currently

" Gather and process information to interpret the results of the Michelson-Morley experiment." This one's got me stumped, any help would be appreciated.

"Discuss the importance of Newtons Law of Universal Gravitation in understanding and calculating the motion of satellites." Can someone help me with this one...

yep ... definitely chem .... :D

A common method of radioisotope production is by neutron activation in a nuclear reactor. This involves the capture of a neutron by the nucleus of an atom resulting in excess neutrons (neutron-rich).

Chemical Monitoring and Management 9.4.1 Dot point 2 Identify the need for collaboration between chemists as they collect and analyse data. is this so that they know what each other has discovered ... or is there some other reason ??

Found them!!!! :D :D listed below incase anybody else wants them... Name Formula Source Ammonia NH3 Windex Methylamine CH3NH2 rotting fish Ethylamine CH3CH2NH2 rotting fish Pyridine C5H5N coal tar Hydrazine...

the syllabus dot point point: "Identify data, gather and process information from secondary sources to identify examples of naturally occurring acids and bases and their chemical composition." i am okay with acids but i am having trouble fining out about bases.

What are some examples of naturally occurring bases ???