balance the following iemic eq zn +h+----->zn2+h2

Answer 1

h ttps://chemequations.com/en/?s=Zn+%2B+H%3A%2B+%3D+Zn%3A2%2B+%2B+H2

there's no space between h and ttps

Answer 2

zn + h+----->zn2+h2
could you mean
Zn + 2 H+ ---> Zn+2 + H2 gas ????