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.
Quick Answer. The chemical reaction between hydrochloric acid and magnesium produces magnesium chloride and hydrogen gas. The balanced chemical equation for this reaction is Mg (s) + 2 HCl (aq) produces MgCl2 (aq) + H2 (g), where the letter s stands for solid, g is gas and aq represents an aqueous solution. Keep Learning.