Hi,
I work in a completely unrelated profession but am trying to get some science qualifications to improve my general understanding, and because from time to time it does assist with work.
I'm doing a yr 12 chemistry equivalent by distance (no doubt extremely basic by the standards of some on here, but I have to start somewhere!) and am hoping for some help.
I live in remote NSW so have no access to a face to face tutor.
I'm having trouble with parts of questions involving balancing equations.
(leaving aside the issues with super/subscript)
1. Li+H2O - I understand that a metal + water = metal hydroxide + hydrogen gas, so I can get as far as Li + H2O = LiOH + H2 but I struggle when it comes to balancing the equation.
2. Pb+O2 - I understand that a metal + oxygen = an oxide so Pb+ O2 = PbO, but again I'm stuck on the balancing issue.
I don't really want answers to the questions - I need to have an understanding of the process so that I can answer future questions correctly and pass the final exam!
Any help will be very gratefully received!