a) Zn + 2HCl --> ZnCl2 + H2
b) \(n_{HCl}=2.0,5=1\left(mol\right)\)
PTHH: Zn + 2HCl --> ZnCl2 + H2
0,5<---1-------------->0,5
=> mZn = 0,5.65 = 32,5 (g)
c) VH2 = 0,5.22,4 = 11,2 (l)
\(n_{HCl}=2\cdot0,5=1mol\)
\(Zn+2HCl\rightarrow ZnCl_2+H_2\)
0,5 1 0,5 0,5
\(m_{Zn}=0,5\cdot65=32,5g\)
\(V_{H_2o}=0,5\cdot22,4=11,2l\)