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Course: Class 10 Chemistry (India) > Unit 2
Lesson 2: Reaction of acids and bases- Reaction of acids and bases with metals
- Reaction of acids with metal carbonates and bicarbonates
- Identifying the gas released
- Detection of gases
- Acid base neutralisation reaction
- Identify the salt formed
- Overview: Reactions of acids and bases
- Metal and non-metal oxides, reacting with acids and bases
- Identify the nature of metal oxide and non metal oxide
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Metal and non-metal oxides, reacting with acids and bases
Metallic oxides are basic and non-metallic oxides are acidic. Created by Ram Prakash.
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in the last section of your video, you have explained how H2CO3 generally existed i.e H and HCO3 ion
but in the reaction of metal carbonate and bicarbonate = salt + H2CO3
and you said that H2CO3 being unstable it decompose to CO2 and H2O
My question is that how H2CO3 in this 2 above cases decompose to different element/compound i.e
in
1st H2CO3 = H + HCO3
2nd H2CO3 = H2O + CO2(5 votes)
H2CO3 as portrayed in the above two situations shows that H2CO3 decomposes differently. H2CO3 which is carbonic acid, is formed by the dissolution and hydrolysis of CO2 in water, is the major natural leaching agent in many temperate ecosystems. Carbonic acid is both weak and unstable and quickly dissociates into hydrogen ions (H+) and bicarbonate ions (HCO3–).Carbon dioxide, when dissolved in water, participates in the following chemical equilibrium:
CO2 + H2O ⇌ H2CO3
It can exist as both based on the circumstances it is put under or the type of equation for short.
Hope this helps.(1 vote)
if we add red litmus solution to acids it will remain red only and if we will add red litmus solution to a neutral solution it will also remain red so if we will not have blue litmus solution and also not have any other indicator is there any other way to find it out that which solution is acidic and which solution is basic(3 votes)
1. Add red litmus to all the solutions. It will turn blue in basic solution
2. Now put the blue litmus (that you got from dipping red litmus into base) into the other two solutions and the blue litmus will turn red in acidic solution.
And now you can test acids and bases :)(2 votes)
When it states the equation CO2 +NaOH --> Na2CO3 +H20 at6:00,
where does the CO3 come from?(2 votes)
the equation is not balanced...it should actually be CO2 + 2NaOH ---> Na2CO3 + H2O
so basically co2 and one oxygen atom of naoh(2 votes)
- in the last section of your video, you have explained how H2CO3 generally existed i.e H and HCO3 ion
but in the reaction of metal carbonate and bicarbonate = salt + H2CO3
and you said that H2CO3 being unstable it decompose to CO2 and H2O
My question is that how H2CO3 in this 2 above cases decompose to different element/compound i.e
in
1st H2CO3 = H + HCO3
2nd H2CO3 = H2O + CO2(2 votes)
I'm not sure what I'm trying to say is right, but I think that the first H₂CO₃ you're talking about is carbonic acid, which dissociates (separates) into H⁺ and HCO₃⁻ ions.
The second one is HCO₃ group, known as hydrogen-carbonates or bicarbonates, which when react with acids, decompose into water and carbon dioxide.
If I'm wrong, I apologize. Hope it helps. :)(2 votes)
why and how does carbonic acid decompose into its ions??(2 votes)- H2CO3 as portrayed in the above two situations shows that H2CO3 decomposes differently. H2CO3 which is carbonic acid, is formed by the dissolution and hydrolysis of CO2 in water, is the major natural leaching agent in many temperate ecosystems. Carbonic acid is both weak and unstable and quickly dissociates into hydrogen ions (H+) and bicarbonate ions (HCO3–).Carbon dioxide, when dissolved in water, participates in the following chemical equilibrium:
CO2 + H2O ⇌ H2CO3
It can exist as both based on the circumstances it is put under or the type of equation for short.
Hope this helps.(1 vote)
- is being basic in nature the same as being a base?(2 votes)
- Yes, because being basic means it has a ph below 7 on the pH scale which only bases do.(1 vote)
- metal oxides are acidic in nature .non metal oxides are basic in nature then what is the nature of metalloids ?(2 votes)
Metal oxides are basic in nature and non-metals are acidic in nature please clear your mistake. Metalloids are either amphoteric or acidic in nature.(1 vote)
When MgO+HCL, Magnesium gets attracted to Chlorine. So when Hydrogen i attracted to Oxygen, why isn't it Hydroxide (OH^-)?(1 vote)
Mg gets attracted to chlorine, forming a compound, because of higher reactivity than hydrogen. Hydrogen, in particular when attracted to oxygen it forms a compound H2O. Hydroxide is a ion and not a simple compound. When MgO + HCL reacts it does not produce enough ions for H and O to convert into a hydroxide ion.
Hope it helps!! ^^(1 vote)
2:552nd equation is not balanced(1 vote)
6:00