a halide anion + a primary alcohol + H(+) => 1-haloalkane + H2O
a halide anion + a primary alcohol + h(+) => 1-haloalkane + h2o
a halide anion + a primary alcohol + H(+) => 1-haloalkane + H2O
a halide anion + a primary alcohol + h(+) => 1-haloalkane + h2o