1) For the moment, we do not know who is an EU migrant as they require no documents- people who are here at the moment are UK citizens and are eligible to stay so will not be impacted, and anybody who comes here and applies for a NI in the next 2 years will be granted access. After this, their status will be uncertain for those who arrive later.
2) China is not part of the EU, and so will probably still be allowed access to the UK. These students are under an educational visa that lasts for the duration of their study period, this will therefore not change.
3) Possibly, possibly not, its far too early to call that, although it has slowly risen from a 6% fall when the results were coming in, and its now down only around 4ish%, so it should be okay.
4) Scotland and NI I reckon will call another referendum, as it will want to go its own way. The Scottish conservative party has mentioned about rebranding to "get away from the scourge Cameron has given us", and is very likely to call a referendum, ad they voted overwhelmingly in favour of remain -
http://www.theweek.co.uk/scottish-independence/55716/scottish-independence-referendum-could-be-held-within-two-years. Honestly, the UK will fall apart, NI is likely to go to referendum because, now being outside the EU, they will be subjected to border controls with Ireland, and will possibly unite with ROI, but again its too early to call.
http://www.dailymail.co.uk/news/article-3657960/Sinn-Fein-calls-referendum-Irish-reunification-Brexit.html?ito=social-facebook5) Probably not, I wouldn't have thought so but again its too early.
6) By the splitting of the UK, yes undoubtedly. By leaving the EU, yes undoubtedly, we have lost the benefits of ever being in a trade bloc, and whilst we still have access to the free market, there will of course be currently unknown impacts. The Spanish government have spoken and said they request Gibraltar's sovereignty to be shared between the 2 nations. -
http://www.msn.com/en-gb/money/personalfinance/6-ways-britain-leaving-the-eu-will-affect-you/ar-AAhzcoV?ocid=spartandhp7) Uh..... No. According to Juncker, No.
8) Given the scenes outside of Boris Johnson's house this morning, probably. I suspect from YP who voted overwhelmingly to stay.
9) "Article 50 of the Treaty on European Union allows a member state to notify the EU of its withdrawal and obliges the EU to try to negotiate a ‘withdrawal agreement’ with that state" -
http://openeurope.org.uk/today/blog/the-mechanics-of-leaving-the-eu-explaining-article-50/ Hope this was useful, any other questions let me know Oh, this is a useful link to read if you're still confused - http://news.sky.com/story/1712387/so-just-how-do-you-divorce-the-eu