Search results

2006 HSC CHEMISTRY SHORT COURSE July & October School Holidays Comprehensive short tuition courses to help you master every aspect of the HSC chemistry course, and help you prepare for HSC examinations. During each course you will recieve expert tuition and excellent course notes and...

Hi, You will find more information at http://www.chemistrycoach.com.au/revisionCourses.htm Regards. ChemCoach Team

Hi, There is a heap of hsc chemistry resources on our webpage at http://www.chemistrycoach.com.au/chemtutorials.htm check it out, since there is a large range of chemistry videos and interactive practicals you can do, sorted into the respective hsc modules. Best of luck with your...

Your teacher is an idiot. He/She should not put questions in an exam when they themselves do not know the actual answer. It is stupid to expect a student to know the answer when the teacher does not know the answer. YOU CAN crack ethane. There is not definate chemical equation you can...

The CONDITIONS for setting galvanic cell would be: * concentration =1 mol/L * temperature = 25oC also, although not soo important * pressure = 1 atm (101.3 kPa) The voltages given on the HSC data sheet are VALID for these conditions. Changing these conditions of the experiment will...

If you react an alkene, e.g. ethene with liquid bromine, Br2(l), only one product is formed, i.e. 1,2-dibromoethane. however, 'bromine water' is usually a 3-5% solution of liquid bromine. The presence of the water complicates the reaction and it turns out that there are more than one product...

The chem coach did not state that all electrons are equidistant from the nucleus, this would be incorrect. What i was explaining was the following: PICTURING ELECTRONS IN THE ATOM: Electrons in atoms move very rapidly and randomly around the nucleus. They do not (repeat, not) move in fixed...

If you react an alkene, e.g. ethene with liquid bromine, Br2(l), only one product is formed, i.e. 1,2-dibromoethane. however, 'bromine water' is usually a 3-5% solution of liquid bromine. The presence of the water complicates the reaction and it turns out that there are more than one product...

theorectically magnesium hydroxide is a strong base. however, for all practical purposes, if a question asks you to name a strong base that you could use in a titration against a strong acid, i would not choose magnesium hydroxide as a strong base.

They should not have stated that Mg(OH)2 is a strong base. I have too many criticisms on what they have written on p160 in their discussion of strong hydroxide bases, and will not bother to discuss them all here. HF(aq) is a weak acid for the reasons i gave before, HCl, HBr and HI are...

This is a very important question, so i thought i'd better clear this up. A substance must be soluble in water for it to ionise (i.e. form its contituent ions). A substance that is completely soluble in water will completely ionises . the solubility rules for hydroxides are as follow...

Click on the link below to get more information about our HSC Chemistry Holiday Course.

Hi, If you would like to download a theory/problem solving work booklet on chemical equilibrium systems just click on the following link http://community.boredofstudies.org/17/chemistry/105348/your-questions-answered-assistance-resources.html and go look under Module Two heading to find...

Although this salt is neutral, your justification is not sufficient, and would not be awarded many marks in the HSC exams. Whether a salt is neutral, acidic or basic, depends on its ability to further react with water. Does the salt react with water? If it does react with water, what happens to...

Hi, I have provided worked solutions for questions very similiar to this, which you may want to have a go at as well for more practice: http://community.boredofstudies.org/17/chemistry/105348/your-questions-answered-assistance-resources.html Go to MODULE 2 -----> "Acid/Base Theory...

Do you know why this potassium ethanoate salt is basic? It is important to know that not all salts have a neutral pH. This is a common misconception since when students here the word 'salt' they think of NaCl(s), which is a neutral salt. However you should recall that a 'salt', in simple terms...

I would like emphasise another point, which was breifly touched on above. the table of standard reduction potentials gives in the HSC lists all the Eo values for reduction half reactions. These values are give in volts. HOWEVER, it is important to state that that these values are valid only...

I've created a thread which you can access at: http://community.boredofstudies.org/17/chemistry/105348/your-questions-answered-assistance-resources.html If you look under the Module One section, you will find a fully worked example oof calculating the molar heat of combustion, which...

2006 HSC CHEMISTRY REVISION COURSES April - July - October School Holidays SPECIAL OFFER: Enrol into all 3 Holiday Course, and the April Course is FREE! Comprehensive short tuition courses to help you master every aspect of the HSC chemistry course, and help you prepare for HSC...

haha, yeah we probably loose out in looks, but we're still excellent chemistry teachers! and keep up the great work in the chem forums Dreamerish*~ !!! ON A DIFFERENCE NOTE: FOR CHEMISTRY RESOURCES TUITION and...