Question

С водородом может реагировать:1) хлор2) медь3) гидроксид калия4) соляная кислота

Answer 1

соляная кислота вроде только она

Answer 2

соляная кислота и хлор и все      

Answer 3

Reactivity of Hydrogen with Various Substances

When it comes to the reactivity of hydrogen, it can react with several substances. Let's explore the reactions with the given options:

1) Chlorine (Cl2): Hydrogen can react with chlorine to form hydrogen chloride. Source: 2) Copper (Cu): Hydrogen does not typically react with copper under normal conditions.

3) Potassium Hydroxide (KOH): Hydrogen can react with potassium hydroxide to form potassium hydride and water. Source: 4) Hydrochloric Acid (HCl): Hydrogen can react with hydrochloric acid to form hydrogen chloride and water. Source: Based on the provided information, hydrogen can react with chlorine and hydrochloric acid, but not with copper or potassium hydroxide.