Press "Enter" to skip to content

What happens when zinc reacts with concentrated hydrochloric acid?

Solution, Zinc is a metal and hydrochloric acid is an acid. When an acid reacts with metal, salt is formed with the evolution of hydrogen gas. Hence, when zinc reacts with hydrochloric acid, zinc chloride is formed with the evolution of hydrogen gas.

What type of reaction occurs between zinc and hydrochloric acid?

Hydrogen Replacement Many metals react easily with acids and when they do so, one of the products of the reaction is hydrogen gas. Zinc reacts with hydrochloric acid to produce aqueous zinc chloride and hydrogen (figure below). In a hydrogen replacement reaction, the hydrogen in the acid is replaced by an active metal.

Why zinc reacts more slowly with dilute hydrochloric acid than with concentrated hydrochloric acid?

With a higher concentration, more hydrogen ions are near the zinc atoms at any given time. This allows more zinc atoms per second to be ionized (reducing the hydrogen in the process) and dissolve into the solution. What happens when zinc reacts with hydrochloric acid.

Which ion causes the acidity in dilute hydrochloric acid?

When HCl is dissolved in water, ions of H and Cl are formed. Hydrogen loses an electron (becoming an ion of +1 charge) and chlorine gains an electron (becoming an ion of -1 charge). Strong acids, like HCl, release many more hydrogen ions in water than do weak acids, like vinegar or lemon juice.

What happens if hydrochloric acid gets on your skin?

Exposure to hydrochloric acid is predominantly by ingestion, or skin or eye contact. Skin exposure to low concentrations of hydrogen chloride gas or hydrochloric acid causes erythema and inflammation of the skin whereas high concentrations can cause severe chemical burns to the skin and mucous membranes.

What happens when metals react with concentrated acids?

When potassium metal reacts with dilute sulphuric acid, potassium sulphate and hydrogen gas are formed. Sodium and potassium metal react with dilute acid vigorously. This reaction is highly exothermic.

Why do metals not react with concentrated acids?

Answer: When a metal reacts with a dilute acid , a salt and hydrogen are formed. The more reactive the metal, the more rapid the reaction is. A metal below hydrogen in the reactivity series will not react with dilute acids.