Hi guys! I was considering posting my questions on the VCE forums for chemistry, but decided not to opt for this since I don't know whether there could be little bit more in it than VCE chem. Anyway, I have been looking around the forum here, and found mostly questions from students who have done VCE chem...so I hope to start up a thread for those who are doing just foundations for chemistry.
I heard that chemistry is difficult from fellow students who studied it, so I have to admit I'm intimidated. Today was my first day, and I already have quite a few questions. I would appreciate if anyone could help
These are my first questions (these are from the textbook I'm using...and there are no answers at the back of the book)
1. On the basis of their positions in the periodic table, why is it not surprising that 90Sr, a dangerous radioactive isotope of strontium, replaces calcium in newly formed bones?
2. In the refining of copper, sizable amounts of silver and gold are recovered, why is this not surprising?
3. Why would you reasonably expect cadmium to be a contaminant in zinc but not in silver?
4. Why is it unlikely that scientists will discover a new element, having an atomic mass of approx 73?
I know there are probably some basic concepts being addressed here, but I don't recall my chem lecturer talk about any possibly related concepts, and the section of the textbook he told us to read did not help...