Question

therefore the answer is NA2CO3.
but how and why ????

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Answer 1

Answer:

Na2CO3

Na2CO3 + H20 = NaOH + H2CO3

NaOH is strong Base

H2CO3 is weak acid

Then Solution is basic/alkaline

2)

NH4Cl + H2O = HCl + NH4OH

HCl _- SA

NH4OH - WB

Acidic

3)

NaNO3 +H2O = NaOH + HNO3

NaOH - SB

HNO3 - SA

Neutral

4)

KCL + H2O = KOH + HCL

KOH - SB

HCL - SA

Neutral

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