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89 for all calculators I used fml (didnt use atar notes) Sent from my SM-G900I using Tapatalk

I actually couldnt put the excel file up cause i dont have the app but its on this site: http://www.news.com.au/national/nsw-act/hsc-results-2017-best-students-in-nsw-revealed/news-story/f56d4e538ff53089491b566fecb8c92c Sent from my SM-G900I using Tapatalk

Re: 2017 HSC Marks Thread 2u math: 93 3u math:85 Chemistry: 87 Biology: 90 Business Studies: 85 Advanced eng: 70

Sorry yeah in that case ice is pretty brittle, however noble gases for example cannot be frozen so they do not have a brittle property.

I dont think you can give covalent compounds a level of brittleness since thet just vary way to much. Like covalent compounds like H2O and CH4 are not brittle at all because they arent even solid they are liquids and gases respectively. The case is the same with covalent network, if we compared...

Yeah kind of, brittleness is a comparative term so its simply the measure of how easy it is for the ionic crystal to displace. If there is a high chance of it displacing then it is really brittle however if there is a low chance of it displacing then it isnt really that brittle Sent from my...

Yes, if both are the exact same (i.e. tablets) and all the water is consumed rhey will both have the exact same impact on the body, the only difference is it will be easier to swallow the one that is dissolved Sent from my SM-G900I using Tapatalk

I think I mentioned this earlier not fully sure but anyways intermolecular bonds make up the physical properties of the compound, and because covalent compounds have intermolecular bonds those structures break and not the intramolecular ones. However ionic, metallic and covalent network all do...

I think I mentioned this earlier not fully sure but anyways intermolecular bonds make up the physical properties of the compound, and because covalent compounds have intermolecular bonds those structures break and not the intramolecular ones. However ionic, metallic and covalent network all do...

some smart science uni students might help (maybe), but Ill make do for now I cant exactly recall metal being cut, however I do recall 1000 degrees Celcius knives on youtube cutting metal and that is simply because the metal is subject to high temperatures which melts it Brittle doesn't...

You can but I am pretty sure the uni will cover the content of 3u if its just recommended

greater than 83 (i.e. any element after bismuth (by textbook definitions for now), as same1111 mentioned) to be more precise. Also if you wanted to be more precise again, the atoms do in fact lose neutrons and protons to become more stable however this is only via beta and alpha radiation gamma...

Yeah its the same for me as well I just checked Sent from my SM-G900I using Tapatalk

Okay, fair enough but as long as you can prove to your teacher that by definition (or by recording what they said or something or some weird textbook) that covalent compounds can only occur between non-metals, you should be able to get it marked as correct, otherwise it would be wrong Sent from...

Intermolecular forces decide the physical properties of the molecules. When melting a metals, it will change from solid to liquid as you have stated because the metallic bonds have broken, metals do not have any intermolecular forces so the effect of intermolecular forces deciding the physical...

Actually it has more to do with the valence shells of the elements (not sure if you have learnt about valence shells) but they are essentially the last shell of an element and because elements that do not 8 electrons in their last shells they are reactive and want to gain or lose electrons in...

Covalent bonds can be defined as bonds that occur between elements where the elements simply share electrons to complete their respective valence shells. This is why it is called 'co' (meaning jointly) and 'valent' (referring to the valence shell). Although examples of non-metal and non-metal...

Yes they would all have different properties Sent from my SM-G900I using Tapatalk

They work the same way as covalent bonds working as intramolecular bonds Yes they dont have intermolecular forces. This is because the bonds that they have are iirc not between any molecules but rather between atoms or an atom and a molecule which in both cases count as intramolecular forces...

You're gonna spend $2000 on pikachu if you plan on counting him twice Sent from my SM-G900I using Tapatalk