Question

Which metal is preferred for collecting hydrogen from hot water? Write the balanced equation for each case.

Answer 1

$Ca$ and $Mg$

${Mg}_{\left(S\right)}+2H_2{O}_{\left(l\right)}\to Mg{\left(OH\right)}_{2\left(S\right)}+H_{2\left(g\right)}$

${Ca}_{\left(S\right)}+2H_2{O}_{\left(l\right)}\to Ca{\left(OH\right)}_{2\left(S\right)}+H_{2\left(g\right)}$