I would like to know why you're having trouble with these? If would could find the root cause we might be able to remedy the situation. I think all of these are activity series questions.
The halogens replace "down the series"; i.e., F2 will oxidize Cl^- to Cl2; Cl2 will oxidize Br^- to Br2 and Br2 will oxidize I^- to I2.
Complete and balance the following reactions, where applicable. If no reaction occurs, write N.R.
Li + H2O --->
KCI + F2 --->
Au + HNO3 ---->
CI2 + NaF --->
Li + Fe(NO3)3 --->
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