2naoh + h2so4 → na2so4 + 2h2o which of the following statements would be correct if four moles of naoh were used in this reaction? two moles of water were produced from this reaction. four moles of water were produced from this reaction. one mole of h2so4 was used in this reaction. eight moles of h2so4 were used in this reaction.

Four moles of water were produced from this reaction.  

Explanation:

2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O,

It is clear that 2.0 moles of NaOH react with 1.0 moles of H₂SO₄ to produce 1.0 mole of Na₂SO₄ and 2.0 moles of H₂O.

Using cross multiplication:

2.0 moles of NaOH produce → 2.0 moles of H₂O.

∴ 4.0 moles of NaOH produce → 4.0 moles of H₂O.

Using cross multiplication:

2.0 moles of NaOH need → 1.0 mole of H₂SO₄.

∴ 4.0 moles of NaOH produce → 2.0 moles of H₂SO₄.

Four moles of water were produced from this reaction.

Four moles of water were produced from this reaction.

Explanation:

its correct

d: the voltage of the secondary coil is less than that of the primary coil.

im not suree sorry if wrong