T
thuhuong88


dien phan dung dich CuCl2 bang dien cuc tro trong 1h voi I=5A luong dong giai phong o Katot la
A 5.9gam B 7.9gam C 5.5gam D7.5gam
giai cu the giup minh voi nhe!thanks!
A 5.9gam B 7.9gam C 5.5gam D7.5gam
giai cu the giup minh voi nhe!thanks!