hoà tan hoàn toàn 13,7 gam kim loại A chưa rõ hoá trị bằng 500ml HCL 1M. Sau phản ứng thu được 2,24 lít H2 ở ĐKTC và dung dịch X. Tìm tên của kim loại và nồng độ mol của các chất trong dung dịch X

Construct the hypothetical phase diagram for metals a and b between room temperature (20c) and 700c, given the following information: * the melting temperature of metal a is 480c. • the maximum solubility of b in a is 4 wt% b, which occurs at 420c. • the solubility of b in a at room temperature is 0 wt% b. • one eutectic occurs at 420c and 18 wt% b–82 wt% a. • a second eutectic occurs at 475c and 42 wt% b–58 wt% a. • the intermetallic compound ab exists at a composition of 30 wt% b–70 wt% a, and melts congruently at 525c.• the melting temperature of metal b is 600c. • the maximum solubility of a in b is 13 wt% a, which occurs at 475c. • the solubility of a in b at room temperature is 3 wt% a.

Which factor is likely to impact the possible number of compounds ?

Which substance can be broken down by chemical means