What happens when a concentrated acid reacts with a metal?

Answer: Acids react with most metals to form hydrogen gas and salt. When an acid reacts with metal, salt and hydrogen gas are produced.

How does concentrated acid react with dilute acid?

With concentrated acids such as hydrochloric, the reaction is very vigorous and the contents become hot. This increases the rate even more, and the contents can froth. With diluted acid, the reaction is much more controlled. Note that concentrated sulphuric and nitric acids do not give much hydrogen.

How does hydrogen react with dilute acid?

Evidence of the reaction with a dilute acid is the formation of hydrogen gas bubbles. These reactions involve the transfer of electrons from the metal to the hydrogen atoms. The evidence of the reaction with water is the generation of hydrogen gas and the raising of the pH of the resulting solution.

What happens when you add dilute hydrochloric acid to a metal?

Addition of acid with metal gives salt and hydrogen gas. When dilute Hydrochloric acid is added to iron filings, iron(II) chloride & hydrogen gas is produced. In this reaction iron displaces hydrogen from hydrochloric acid to form iron chloride & hydrogen gas this reaction is a single displacement reaction.

Why is hydrogen produced when metal reacts with acid?

Atoms are always competing with each other for valence electrons. Hydrogen “wants” those electrons. So an active metal reacts with acids to produce hydrogen.

Which of the following metals will not react with dilute acid?

– Therefore the metals which do not react with dilute hydrochloric acid are copper and mercury.

Why does concentrated acid react faster than dilute acid?

More collisions means that the reaction goes faster – its rate increases. Concentration of the acid used also affects the rate because when there is a higher concentration (more acid) there are more particles to collide with each other-more collisions means that the reaction goes faster.

Why does concentrated acid solution react more quickly than a diluted acid *?

A chemical substance of higher concentration will contain more amount of particles in certain amount of volume, than a dilute substance. Now, more particles means more collisions. That’s why, a sample of concentrated acid will react more rapidly than a sample of dilute acid.

When metals react with dilute acids hydrogen gas is evolved with?

Metals react with dilute acids to form metallic salts and hydrogen gas. Example: Zinc metal reacts with dilute hydrochloric acid to form zinc chloride and hydrogen gas.

What happens when dilute acid is added to metals explain with the help of chemical equation?

Metals react with dilute acids to form metallic salts and hydrogen gas. For example, Aluminium foil reacts with dilute hydrochloric acid to produce aluminum chloride and hydrogen gas. The balanced chemical equation for the reaction is: 2Al(s) + 6HCl(aq) 2AlCl3(aq) + 3H2(g).

What happens when a metal is added to a dilute acid write the equation?

Aluminium reacts with dilute hydrochloric acid to give aluminum chloride and hydrogen gas. The balanced equation is = 2Al(s) + 6HCl(aq) —–> 2AlCl3(aq) + 3H2(g).

What happens when dilute acids react with different metals?

The reactions of dilute acids with a variety of different metals can be investigated, small fresh samples of metals are placed in 2ml samples of dilute hydrochloric or sulfuric acid. The rate of reaction depends on the Concentration of the acid – if the acid is too dilute the reaction is very slow.

What is the rate of reaction between concentrated and diluted acids?

In case of concentrated acid the rate of reaction is quite fast but in case of diluted acid , the rate of reaction is a bit slow because they partially breaks into ions. But exceptions are there, like Na, Ca, and other highly reactive metals , they do react with the diluted acid with a good speed.

How does reactivity increase with dilute sulfuric acid?

Of the metals above hydrogen, reactivity increases the further up the reactivity series you go. A reaction with dilute sulfuric acid gives a metal sulfate and hydrogen. A reaction with dilute hydrochloric acid gives a metal chloride and hydrogen.

What is the general equation for the reaction between acid and metal?

For acids such as dilute hydrochloric acid and dilute sulfuric acid the general equation for their reaction with reactive metal is Acid + Metal → Ionic compound + Hydrogen gas Acids are very useful in controlling and steering many chemical reactions.