JAMB - Chemistry (2001 - No. 45)
When sodium reacts with water, the resulting solution is
Weakly acidic
Neutral
Acidic
Alkaline
Giải thích
Sodium reacts vigorously with water to produce a solution of sodium hydroxide and hydrogen gas. Sodium hydroxide is an alkali.
2Na + 2H\(_2\)O → 2NaOH + H\(_2\)