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When 5 ml of dilute HCL is added to a mixture of iron fillings and sulphur powder which gas is evolved?
When dilute hydrochloric acid (HCl) is added to a mixture of iron filings and sulfur powder, hydrogen gas (H₂) is evolved. The acid reacts with the iron filings, leading to the formation of iron chloride and the release of hydrogen gas. Sulfur does not react with hydrochloric acid under these conditions, so it does not contribute to the gas evolved.
Why cannot the dilute solution of hydrogen peroxide be concentrated by heating strongly?
Heating a dilute solution of hydrogen peroxide strongly can lead to rapid decomposition of the hydrogen peroxide into water and oxygen gas. This decomposition reaction is exothermic and can become uncontrollable, resulting in a dangerous buildup of pressure and potential explosion.
What is the symbol of dilute sulphuric acid?
H2SO4(dilute)
What is the difference betwee dilute to and dilute with?
Dilute is where you weaken something .e.g. the chemical will be less strong. Think of it as when you make squash you have to add water to dilute it so the taste isn't as strong. Dissolve is where a chemical completely disappears from the eye. Like when you add sugar to tea you can't see it but actually it has dissolved into the tea to make it sweeter.
What is typically done to a solution to dilute it?
The quantity of the solvent is increased to dilute a solution.
What liberate hydrogen gas when treated with dilute HNO3?
Zinc liberates hydrogen gas when treated with dilute HNO3.
What gas is evolved when dilute nitric acid is added to Zinc?
When dilute nitric acid is added to zinc, the gas evolved is nitrogen dioxide (NO2) along with water and zinc nitrate.
Which mineral reacts readily with cool dilute hydrochloric acid to produce visible bubbles of carbon dioxide gas?
Quartz
What is A carbonate mineral that reacts readily with cool dilute hydrochloric acid is?
Calcite is a common carbonate mineral that reacts readily with cool dilute hydrochloric acid, producing bubbles of carbon dioxide gas. This reaction is a simple way to distinguish calcite from other minerals.
What happens when you mix potassium and dilute hydrochloric acid should you dp it in school laboratories?
it makes a masive explosion
The gas evolved when metals react with dilute acids?
When metals react with dilute acids, hydrogen gas is evolved. This is because metals displace hydrogen from the acid, resulting in the formation of metal salts and hydrogen gas as a byproduct. The reaction can be represented as metal + acid → metal salt + hydrogen gas.
What the name of he gas evolved when baking soda reacts with dilute hydrochloric acid?
Hydrogen gas- very explosive when mixed with a spark
Which mineral is most likely to display effervescence when treated with dilute acid?
Calcite is the most likely mineral to display effervescence when treated with dilute acid. The acid reacts with the calcium carbonate in calcite, releasing carbon dioxide gas, which causes the mineral to bubble or fizz.
When 5 ml of dilute HCL is added to a mixture of iron fillings and sulphur powder which gas is evolved?
When dilute hydrochloric acid (HCl) is added to a mixture of iron filings and sulfur powder, hydrogen gas (H₂) is evolved. The acid reacts with the iron filings, leading to the formation of iron chloride and the release of hydrogen gas. Sulfur does not react with hydrochloric acid under these conditions, so it does not contribute to the gas evolved.
Which gas is evolved when few pieces of marble is added to dilute HCl?
When marble (calcium carbonate, CaCO3) is added to dilute hydrochloric acid (HCl), carbon dioxide gas (CO2) is evolved due to the reaction between the acid and the carbonate compound. This gas can be observed as bubbles coming out of the solution.
Why does not silver evolve h2 on reacting with dilute h2so4?
Silver is too unreactive to displace hydrogen from dilute sulfuric acid. The Standard Reduction Potential (SRP) of silver is higher than that of hydrogen, so it cannot reduce H+ ions to H2 gas. Therefore, no hydrogen gas is evolved when silver reacts with dilute sulfuric acid.
What is observed when copper oxide is added into excess dilute sulphuric acid?
When copper oxide is added into excess dilute sulphuric acid, it reacts to form copper sulfate and water. Additionally, hydrogen gas is evolved during the reaction.
