Cho m gam hỗn hợp (A) gồm Zn và Fe vào dung dịch HCl dư, thu được 1,12 lít khí hidro. Nếu cho m gam hỗn hợp (A) vào dung dịch CuSO4 dư. Phản ứng xảy ra xong thì số gam kết tủa thu được là: A. 0,8 gam B. 3,2 gam C. 1,6 gam D. 6,4 gam

If you open the bottle of perfume then nothing but the smell will come out of it and yes it is a type of gas smell because it’s say it in english so i can understand better and you

Answerd. may include all of these are many definitions of bases: the  brønsted-lowry definition of acids and bases says that bases are proton acceptors.the arrhenius definition of acids and bases says that bases increase [oh⁻] in solution (thereby producing oh⁻ ions)the lewis definition of acids and bases says that bases donate electron pairs.therefore, the sensible answer is that a base may include all of the described characteristics.

Ithink about 50 % of an original isotope's number of atoms remain