1) Apparently, BOTH an acidic oxide and acid would react with an alkali to produce salt and water (neutralisation). But acidic oxides are not acids right? You need to add water to the former before it can become the latter. How then is the above statement true?
2) Why can a base react with an acid to produce salt and water? I thought ONLY an alkali can react. Because only with the presence of water would the alkali be able to dissociate into hydroxide ions and these OH- can thus react with the H+ of an acid. But a base would not be able to! So technically, there's no reaction between an acid and base right?
3) Isn't a carbonate a salt rather than a base? Eg. In Na2CO3, sodium replaces the hydrogen ions of carbonic acid to give sodium carbonate. Hence, a carbonate is a salt.
2) Why can a base react with an acid to produce salt and water? I thought ONLY an alkali can react. Because only with the presence of water would the alkali be able to dissociate into hydroxide ions and these OH- can thus react with the H+ of an acid. But a base would not be able to! So technically, there's no reaction between an acid and base right?
3) Isn't a carbonate a salt rather than a base? Eg. In Na2CO3, sodium replaces the hydrogen ions of carbonic acid to give sodium carbonate. Hence, a carbonate is a salt.
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Very good question.
oxides are classified as acidic, basic or neutral depending on the fact that when dissolved in water whether they produce an acidic, basic or neutral solution.
Note there will be normally no reaction in the absence of water between them.
Bases may not have a displaceable OH- but generally react with water to form OH- e.g. ammonia or amines.
Yes it is a salt. Though it reacts with acids to evolve CO2 because strong acid displaces a weak acid
oxides are classified as acidic, basic or neutral depending on the fact that when dissolved in water whether they produce an acidic, basic or neutral solution.
Note there will be normally no reaction in the absence of water between them.
Bases may not have a displaceable OH- but generally react with water to form OH- e.g. ammonia or amines.
Yes it is a salt. Though it reacts with acids to evolve CO2 because strong acid displaces a weak acid
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1) well most of the reactions in chemistry are made in solutions ( this mean the presence of water ).
They are called acidic oxides because they can form acids. So no matter the reaction you will have water, because most of the substances are solid, and solid with solid can't react as liquid with liquid ( that's why the make the reactions in solutions ).
2) they simply react with each other because they are like 2 opposite things, they attract each other and neutralize. alkali are bases of the first group of metals:P.
3) Na2CO3 is a salt that was formed from a very powerfull base ( NaOH ) and an acid that's not so powerfull ( H2CO3 - you can drink it ), so the result ( Na2CO3 ) will act like a base ( if you check with a pH meter you will see that the solution is like a base )
They are called acidic oxides because they can form acids. So no matter the reaction you will have water, because most of the substances are solid, and solid with solid can't react as liquid with liquid ( that's why the make the reactions in solutions ).
2) they simply react with each other because they are like 2 opposite things, they attract each other and neutralize. alkali are bases of the first group of metals:P.
3) Na2CO3 is a salt that was formed from a very powerfull base ( NaOH ) and an acid that's not so powerfull ( H2CO3 - you can drink it ), so the result ( Na2CO3 ) will act like a base ( if you check with a pH meter you will see that the solution is like a base )