Question

Which of the following pairs of reactants will react together to produce water (H2O) as one of the products? NaNO3 and H2O Mg3(PO4)2 and Al2O3 Fe(OH)3 and H2SO4 Li2O and Ba(OH)2

Answer 1

Fe(OH)2 and H2SO4 ———> FeSO4 + H2O

Answer 2

Fe(OH)₃ and H₂SO₄

Step-by-step explanation:

Acids react with base to form salt and water. This is known as neutralization reaction.

Fe(OH)₃ (iron III hydroxide, base) + H₂SO₄ (sulfuric acid) → Fe₂(SO₄)₃ (iron sulfate, salt) + H₂O (water)

The remaining options do not have an acid and base pairing.

NaNO₃ (metal nitrate, sodium nitrate, salt), and H₂O (water)

Mg₃(PO₄)₂ (metal phosphate, magnesium phosphate, salt) and Al₂O₃ (metal oxide, aluminium oxide)

Li₂O (metal oxide, lithium oxide) and Ba(OH)₂ (metal hydroxide, barium hydroxide, base)