Everyone has the HD gene, but in some families an abnormal copy of the gene gets passed from parent to child. If you have a parent with Huntington's disease, you have a 50% chance of having the gene and developing the disease. Also: Men and women are equally likely to inherit the abnormal gene.
Hydrogen gas is produced: Zn + 2HCl â ZnCl2 + H2â + Î´Q   Zinc (Zn) reacts with Hydrochloric Acid (HCl) to produce Zinc Chloride (ZnCl2), Hydrogen Gas (H2), and He â¦ at. 6 people found this useful.
Zn + 2HCl H 2 + ZnCl 2 B. What gas was produced by the reaction of zinc and hydrochloric acid? How did this gas behave in the presence of fire? The gas produced by the reaction of zinc and hydrochloric acid was hydrogen. In the presence of fire Hydrogen explodes with a popping sound.