Question

I NEED HELP!!! ANYONE?? FILE ATTACHED!!!

Answer 1

Here is the attached file

Answer 2

1. magnesium has charge 2+ and fluorine has -1
2. number of neutrons is mass number (266) minus atomic number
3. cobalt has as it says +3 charge and dichromate ion has -2 charge
4. it is what it is
5. one of which has least number of significant figures in X= is the number of significant figures your answer should have
6. if its pure water and it is not an ion what do you think it is
7. too b or not to b
8. calculate it from reaction ratio in task 7.
9. c'mon that one you must know
10. isotopes are elements with same atomic number but different mass number, difference in mass comes from neutrons

Answer 3

I hope I answered you brother. I didn't answer the last two because it was too much to write, and I make a lot of mistakes solving those on the computer.