HBr + Al =HBr + Sr =HBr + Li =HBr + Ni = как решить?

Question

HBr + Al =
HBr + Sr =
HBr + Li =
HBr + Ni =
как решить?

Answer 1

6HBr + 2Al → 2AlBr₃ + 3H₂↑
2HBr + Sr → SrBr₂ + H₂↑
2HBr + 2Li → 2LiBr + H₂↑
2HBr + Ni → NiBr₂ + H₂↑