Question Number 9560 by tawakalitu last updated on 15/Dec/16
Commented by tawakalitu last updated on 15/Dec/16
$$\mathrm{please}\:\mathrm{i}\:\mathrm{need}\:\mathrm{help}\:\mathrm{on}\:\mathrm{this}.\:\mathrm{urgent}.\:\mathrm{Thanks} \\ $$$$\mathrm{for}\:\mathrm{your}\:\mathrm{help}. \\ $$
Commented by FilupSmith last updated on 15/Dec/16
$$\mathrm{I}\:\mathrm{don}'\mathrm{t}\:\mathrm{know}\:\mathrm{chemistey}.\:\mathrm{sorry} \\ $$