a) SO2 acidic
b) Na2O basic
c) CO2 acidic
d) CaO basic
e) no correct answer -wrong
Most metal oxides and hydroxides especially those of the alkali metals and alkaline earth metals.
Arrhenius bases produce OH- ions by definition when dissolved in water. A Bronsted - Lowry base can produce OH- ions, but only has to produce a proton accepting group by definition. A Lewis base is defined as an electron donating group, which hydroxide ion is. So, basic compounds do produce OH- ions when dissolved in water, but not in all cases.
Concentration
because when it is dissolved in water calcium hydroxide is formed
No element is acidic or basic. Compounds are.
when ash of magnesium is dissolved in water then magnesium hydroxide is formed. MgO + H2O---->Mg{oh}2 hence, the solution is basic in nature.The oxides of metals are basic in nature.Therefore,their aqueous solution turns red litmus blue.
Arrhenius bases produce OH- ions by definition when dissolved in water. A Bronsted - Lowry base can produce OH- ions, but only has to produce a proton accepting group by definition. A Lewis base is defined as an electron donating group, which hydroxide ion is. So, basic compounds do produce OH- ions when dissolved in water, but not in all cases.
Ammonia gas when dissolved in water produce Ammonium hydroxide so its solution is basic.
To make a basic solution, it has to contain available hydroxide ions. Chlorine doesn't, so it can't be basic.
Most metal hydroxides and oxides e.g. K2O and KOH
Yes, dissolved soap is a basic solution.
solute is the substance being dissolved, solvent is the substance doing the dissolving. A solution is a mixture, not a compound. There is no exact formula for a solution, there can be a small amount dissolved (called a dilute solution) or a large amount dissolved (called a concentrated solution). Sugar in water is a solution, sugar is the solute, water is the solvent.
Concentration
because when it is dissolved in water calcium hydroxide is formed
sea salt
MgO + H2O -> Mg(OH)2 Basic. Magnesium hydroxide is the usual product here.
No element is acidic or basic. Compounds are.
Excepting beryllium, the others mentioned elements produce basic solutions when are dissolved in water.