Question

Sodium hydroxide (NaOH) and hydrochloric acid (HCl) combine to make table salt (NaCl) and water (H2O). Which equation is balanced?(1 point)
Responses

2NaOH + 2HCl → 2NaCl + H2O
2NaOH + 2HCl → 2NaCl + H 2 O

2NaOH + HCl → NaCl + H2O
2NaOH + HCl → NaCl + H 2 O

NaOH + HCl → NaCl + H2O
NaOH + HCl → NaCl + H 2 O

NaOH + 2HCl → NaCl + H2O

Answer 1

NaOH + HCl → NaCl + H2O

Explanation: LHS: Na 1, H 2 (1 from NaOH + 1 from HCl), O 1, Cl 1. RHS: Na 1, H 2 (in H2O), O 1, Cl 1 — all atoms balance.