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.
Write a balanced chemical equation for this reaction. 1  Identify the reactants and products: reactants : zinc and hydrochloric acid. products : hydrogen and zinc chloride. 2  Write the word equation: general form of equation: reactants. â. 3  Write the formula for all reactants and products: zinc : Zn. hydrochloric acid : HCl.