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.
B. a zinc strip and 3.0 M HCl(aq) D. zinc powder and 3.0 M HCl(aq) 2. A catalyst increases the rate of a chemical reaction by. A. lowering the activation energy of the reaction C. raising the temperature of the reactants. B. lowering the potential energy of the products D. raising the concentration of the reactants. 3.